Learn about Web Crawlers Search engines and User-Agents

Web Crawlers

Web crawlers, also known as web spiders or internet bots, are programs that browse the web in an automated manner for the purpose of indexing content. Crawlers can look at all sorts of data such as content, links on a page, broken links, sitemaps, and HTML code validation.

  

  

Search engines like Google, Bing, and Yahoo use crawlers to properly index downloaded pages so that users can find them them faster and more efficiently when they are searching. Without crawlers there would be nothing to tell them that your website has new and fresh content. Sitemaps also can play a part in that process. So web crawlers, for the most part, are a good thing. However there are also issues sometimes when it comes to scheduling and load as a crawler might be constantly polling your site. And this is where a robots.txt file comes into play. This file can help control the crawl traffic and ensure that it doesn’t overwhelm your server.

Web crawlers identify themselves to a web server by using the User-agent field in an HTTP request, and each crawler has their own unique identifier. Most of the time you will need to examine your web server referrer logs to view web crawler traffic.

Robots.txt
By placing a robots.txt file at the root of your web server you can define rules for web crawlers such as allow or disallow that they must follow. You can apply generic rules which apply to all bots or get more granular and specify their specific User-agent string.

Learn more about the Top Search engine Bots
There are hundreds of web crawlers and bots scouring the internet but below is a list of popular web crawlers and bots that we have  been collected based on ones that we see on a regular basis within our web server logs.

Googlebot: Googlebot is Google’s web crawling bot (sometimes also called a “spider”). Googlebot uses an algorithmic process: computer programs determine which sites to crawl, how often, and how many pages to fetch from each site. Googlebot’s crawl process  begins with a list of webpage URLs, generated from previous crawl processes and augmented with Sitemap data provided by webmasters. As Googlebot visits each of these websites it detects links (SRC and HREF) on each page and adds them to its list of pages to crawl. New sites, changes to existing sites, and dead links are noted and used to update the Google index.

"Google+"Another one you might see popup is Google+. When a user shares a URL on Google+ or an app writes an app activity, Google+ attempts to fetch the content and create a snippet to provide a summary of the linked content. This service is different than the Googlebot that crawls and indexes your site. These requests do not honor robots.txt or other crawl mechanisms because this is a user-initiated request.

"Most Popular And Best Internet Search Engines in the World"

"Baiduspider " Baiduspider is a robot of Baidu Chinese search engine. Baidu (Chinese: 百度; pinyin: Bǎidù) is the leading Chinese search engine for websites, audio files, and images.

"MSN Bot/Bingbot" This is a web-crawling robot (type of Internet bot), deployed by Microsoft to supply Bing (search engine). It collects documents from the web to build a searchable index for the Bing (search engine).

"Slurp Bot"Yahoo Search results come from the Yahoo web crawler Slurp and Bing’s web crawler, as a lot of Yahoo is now powered by Bing. Sites should allow Yahoo Slurp access in order to appear in Yahoo Mobile Search results.dditionally, Slurp does the following:

Collects content from partner sites for inclusion within sites like Yahoo News, Yahoo Finance and Yahoo Sports.
Accesses pages from sites across the Web to confirm accuracy and improve Yahoo’s personalized content for our users.

"Yandex Bot" Yandex bot is Yandex’s search engine’s crawler. Yandex is a Russian Internet company which operates the largest search engine in Russia with about 60% market share in that country. Yandex ranked as the fifth largest search engine worldwide with more than 150 million searches per day as of April 2012 and more than 25.5 million visitors.

"Soso Spider " Soso.com is a Chinese search engine owned by Tencent Holdings Limited, which is well known for its other creation QQ. Soso.com is ranked as the 36th most visited website in the world and the 13th most visited website in China, according to Alexa Internet. On an average, Soso.com gets 21,064,490 page views everyday.


"DuckDuckBot"DuckDuckBot is the Web crawler for DuckDuckGo, a search engine that has become quite popular lately as it is known for privacy and not tracking you. It now handles over 12 million queries per day. DuckDuckGo gets its results from over four hundred sources. These include hundreds of vertical sources delivering niche Instant Answers, DuckDuckBot (their crawler) and crowd-sourced sites (Wikipedia). They also have more traditional links in the search results, which they source from Yahoo!, Yandex and Bing.

"Baiduspider"Baiduspider is the official name of the Chinese Baidu search engine’s web crawling spider. It crawls web pages and returns updates to the Baidu index. Baidu is the leading Chinese search engine that takes an 80% share of the overall search engine market of China Mainland.

"Sogou Spider"Sogou Spider is the web crawler for Sogou.com, a leading Chinese search engine that was launched in 2004. it has a rank of 103 in Alexa’s internet rankings. Note: The Sogou web spider does not respect the robots.txt internet standard, and is therefore banned from many web sites because of excessive crawling.

"Exabot"Exabot is a web crawler for Exalead, which is a search engine based out of France. It was founded in 2000 and now has more than 16 billion pages currently indexed.

"Facebook External Hit"Facebook allows its users to send links to interesting web content to other Facebook users. Part of how this works on the Facebook system involves the temporary display of certain images or details related to the web content, such as the title of the webpage or the embed tag of a video.

"Alexa Crawler"Ia_archiver is the web crawler for Amazon’s Alexa internet rankings. As you probably know they collect information to show rankings for both local and international sites.

"Google Feedfetcher" Used by Google to grab RSS or Atom feeds when users choose to add them to their Google homepage or Google Reader. Feedfetcher collects and periodically refreshes these user-initiated feeds, but does not index them in Blog Search or Google’s other search services (feeds appear in the search results only if they’ve been crawled by Googlebot).

 

 

http://www.bing.com/webmaster/ping.aspx?siteMap=http://www.undocopy.com/sitemap.xml

www.bing.com/webmaster/ping.aspx?siteMap=http://www.undocopy.com/sitemap.xml

http://www.google.com/webmasters/sitemaps/ping?sitemap=http://www.undocopy.com/sitemap.xml
     

Read More

What is Ransomware and Easy Steps To Keep Your data and System Protected

Ransomware is malware for data kidnapping, an exploit in which the attacker encrypts the victim's data and demands payment for the decryption key. 

Ransomware spreads through e-mail attachments, infected programs and compromised websites. A ransomware malware program may also be called a cryptovirus, cryptotrojan or cryptoworm.Attackers may use one of several different approaches to extort money from their victims:

After a victim discovers he cannot open a file, he receives an email ransom note demanding a relatively small amount of money in exchange for a private key. The attacker warns that if the ransom is not paid by a certain date, the private key will be destroyed and the data will be lost forever.

The victim is duped into believing he is the subject of an police inquiry. After being informed that unlicensed software or illegal web content has been found on his computer, the victim is given instructions for how to pay an electronic fine.

Must Read : Bitcoin use in Ransomware 

The malware surreptitiously encrypts the victim's data but does nothing else. In this approach, the data kidnapper anticipates that the victim will look on the Internet for how to fix the problem and makes money by selling anti-ransomware software on legitimate websites.To protect against data kidnapping, experts urge that users backup data on a regular basis. If an attack occurs, do not pay a ransom. Instead, wipe the disk drive clean and restore data from the backup.

Ransomware is a sophisticated piece of malware that blocks the victim’s access to his/her files.

"There are two types of ransomware in circulation:"

"Encrypting ransomware:" which incorporates advanced encryption algorithms. It’s designed to block system files and demand payment to provide the victim with the key that can decrypt the blocked content. Examples include CryptoLocker, Locky, CrytpoWall and more.

"Locker ransomware:" which locks the victim out of the operating system, making it impossible to access the desktop and any apps or files. The files are not encrypted in this case, but the attackers still ask for a ransom to unlock the infected computer. Examples include the police-themed ransomware or Winlocker.

"Ransomware has some key characteristics that set it apart from other malware:"

It features unbreakable encryption, which means that you can’t decrypt the files on your own (there are various decryption tools released by cyber security researchers – more on that later);

It has the ability to encrypt all kinds of files, from documents to pictures, videos, audio files and other things you may have on your PC;

It can scramble your file names, so you can’t know which data was affected. This is one of the social engineering tricks used to confuse and coerce victims into paying the ransom;

It will add a different extension to your files, to sometimes signal a specific type of ransomware strain;

It will display an image or a message that lets you know your data has been encrypted and that you have to pay a specific sum of money to get it back;

It requests payment in Bitcoins, because this crypto-currency cannot be tracked by cyber security researchers or law enforcements agencies;

Usually, the ransom payments has a time-limit, to add another level of psychological constraint to this extortion scheme. Going over the deadline typically means that the ransom will increase, but it can also mean that the data will be destroyed and lost forever.

It uses a complex set of evasion techniques to go undetected by traditional antivirus (more on this in the “Why ransomware often goes undetected by antivirus” section);

It often recruits the infected PCs into botnets, so cyber criminals can expand their infrastructure and fuel future attacks;

It can spread to other PCs connected in a local network, creating further damage;

It frequently features data exfiltration capabilities, which means that ransomware can extract data from the affected computer (usernames, passwords, email addresses, etc.) and send it to a server controlled by cyber criminals;

It sometimes includes geographical targeting, meaning the ransom note is translated into the victim’s language, to increase the chances for the ransom to be paid.

"Where does the current wave of ransomware infection come from?"

Even though most companies have extensive security mechanisms in place, such as virus scanners, firewalls, IPS systems, anti-SPAM/anti-virus-email-gateways and web filters, we are currently witnessing large numbers of infections worldwide with ransomware infections, such as Cryptowall, TeslaCrypt and Locky. Files on computers and network drives are encrypted as part of these infections in order to blackmail the users of these computers to pay a sum of money, usually in the region of USD 200-500, for the decryption tool.

"A common infection scenario may look like this:"

A user receives an email that comes from a seemingly plausible sender with an attached document, a parcel service with attached delivery information or anexternal company with an attached invoice.

The email attachment contains an MS Word or Excel document with an embeddedmacro. If the recipient opens the document a macro will attempt to startautomatically, executing the following actions:

It tries to download the actual ransomware payload from a series of webaddresses that only exist momentarily. If a web address cannot be reached, thenext one is accessed until the payload has been downloaded successfully.

"The macro executes the ransomware"

The ransomware contacts the command & control server of the attacker,sends information about the infected computer and downloads an individual public key for this computer.

Files of certain types (Office documents, database files, PDFs, CAD documents,HTML, XML etc.) are then encrypted on the local computer and on all accessible network drives with this public key.

Automatic backups of the Windows operating system (shadow copies) are often deleted to prevent this type of data recovery.

"Best practices to apply immediately"

Backup regularly and keep a recent backup copy off-site. There are dozens of ways other than ransomware that files can suddenly vanish, such as fire, flood, theft, a dropped laptop or even an accidental delete. Encrypt your backup and you won’t have to worry about the backup device falling into the wrong hands.

Don’t enable macros in document attachments received via email. Microsoft deliberately turned off auto-execution of macros by default many years ago as a security measure. A lot of malware infections rely on persuading you to turn macros back on, so don’t do it!

Be cautious about unsolicited attachments.
The crooks are relying on the dilemma that you shouldn’t open a document until you are sure it’s one you want, but you can’t tell if it’s one you want until you open it. If in doubt, leave it out.

Don’t give yourself more login power than you need. Most importantly, don’t stay logged in as an administrator any longer than is strictly necessary, and avoid browsing, opening documents or other “regular work” activities while you haveadministrator rights.

Consider installing the Microsoft Office viewers. 

These viewer applications let you see what documents look like without opening them in Word or Excel itself. Inparticular, the viewer software doesn’t support macros at all, so you can’t enablemacros by mistake!

Patch early, patch often. 

Malware that doesn’t come in via document macros often relies on security bugs in popular applications, including Office, your browser, Flash and more. 

The sooner you patch, the fewer open holes remain forthe crooks to exploit. Keep informed about new security features added to your business applications. Forexample, Office 2016 now includes a control called "Block macros from running inOffice files from the internet" which helps protect you from external malicious content without stopping you using macros internally.

Open .JS files with Notepad by default.

This helps protect against JavaScript borne malware by enabling you to identify the file type and spot suspicious files.

Show files with their extensions. 

Malware authors increasingly try to disguise the actual file extension to trick you into opening them. Avoid this by displaying files with their extensions at all times.

Read More

What is Bitcoin and How does Bitcoin work?

Bitcoin is a form of digital currency, created and held electronically. No one controls it. Bitcoins aren’t printed, like dollars or euros – they’re produced by people, and increasingly businesses, running computers all around the world, using software that solves mathematical problems.

Bitcoin is a type of digital asset, most commonly defined as a virtual, digital or crypto- currency.

Bitcoin was invented by Satoshi Nakamoto, who published the payment system in a whitepaper in 2008. Released as open-source software in 2009, the bitcoin system is peer-to-peer which means that transactions take place without the need for a third-party. These transactions or payments are then recorded in a public distributed ledger called the blockchain, which uses bitcoin as its unit of account.

The blockchain is the backbone of bitcoin, serving as a financial ledger without any trusted central authority - this means that it is decentralized and no single person or institution owns the currency.With every new transaction, recordings are added as 'blocks', which each block added in a linear, chronological order. Described in simple traditional banking terms - the blockchain is the full history of banking transactions, while the blocks are like individual bank statements. Bitcoins do not physically exist, instead there are only these records of transactions and balances.

The unit of currency in the bitcoin system is, simply, bitcoin. There are three symbols used to express bitcoin - BTC, XBT and ?. Bitcoins can be split down into alternative units such as millibitcoin (mBTC), microbitcoin (µBTC) and satoshi. Satoshi, named in honour of the bitcoin founder, is one hundred millionth of a bitcoin - the smallest amount possible.

You can acquire bitcoins as payment for a service or goods or through purchase at bitcoin exchanges.

Bitcoins, however, can be created by anyone - all you have to do is help process payments into the distributed ledger. By offering your own compute power to verify and record payments, bitcoins are created as a reward or payment for your services. This activity is widely known as bitcoin mining.

Bitcoin is an anonymous digital currency.Bitcoin is not real money. It's an online "currency"—virtual tokens that can be exchanged for goods and services at places that accept it, the same way you'd give someone a dollar for a cookie. But unlike a dollar, a Bitcoin has no serial number or any possible mechanism that could be used to trace it back to a buyer or seller. This makes it attractive to drug dealers and/or privacy advocates.

itcoin is a digital currency (also called crypto-currency) that is not backed by any country's central bank or government. Bitcoins can be traded for goods or services with vendors who accept Bitcoins as payment.

Bitcoin-to-Bitcoin transactions are made by digitally exchanging anonymous, heavily encrypted hash codes across a peer-to-peer (P2P) network. The P2P network monitors and verifies the transfer of Bitcoins 

The basics for a new user
As a new user, you can get started with Bitcoin without understanding the technical details. Once you have installed a Bitcoin wallet on your computer or mobile phone, it will generate your first Bitcoin address and you can create more whenever you need one. You can disclose your addresses to your friends so that they can pay you or vice versa. In fact, this is pretty similar to how email works, except that Bitcoin addresses should only be used once.

Balances - block chain

The block chain is a shared public ledger on which the entire Bitcoin network relies. All confirmed transactions are included in the block chain. This way, Bitcoin wallets can calculate their spendable balance and new transactions can be verified to be spending bitcoins that are actually owned by the spender. The integrity and the chronological order of the block chain are enforced with cryptography.

Transactions - private keys

A transaction is a transfer of value between Bitcoin wallets that gets included in the block chain. Bitcoin wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet. The signature also prevents the transaction from being altered by anybody once it has been issued. All transactions are broadcast between users and usually begin to be confirmed by the network in the following 10 minutes, through a process called mining.

Processing - mining

Mining is a distributed consensus system that is used to confirm waiting transactions by including them in the block chain. It enforces a chronological order in the block chain, protects the neutrality of the network, and allows different computers to agree on the state of the system. To be confirmed, transactions must be packed in a block that fits very strict cryptographic rules that will be verified by the network. These rules prevent previous blocks from being modified because doing so would invalidate all following blocks. Mining also creates the equivalent of a competitive lottery that prevents any individual from easily adding new blocks consecutively in the block chain. This way, no individuals can control what is included in the block chain or replace parts of the block chain to roll back their own spends.

Going down the rabbit hole

This is only a very short and concise summary of the system. If you want to get into the details, you can read the original paper that describes the system's design, read the developer documentation, and explore the Bitcoin wiki.

Read More

Best Blogging Communities to get Traffic for your website

Blogging Communities plays an important role to promote your blog posts & getting more and more views on it. It is one of the powerful place to promote your blog posts. Blogging communities can help to drive massive traffic to your blog without any more effort.

What is Blogging Community ?Blog community is a place where you can build relationship with other fellow bloggers, share your views with other bloggers and also you can get quality traffics from it. In short it is a social media for bloggers to interact with other bloggers and to drive more traffics to your blog.

Benefits of joining Blogging Community ?

• Drive quality traffic to your blog.
• Build relationship with other bloggers.
• Share your views to other bloggers.
• Get higher rankings on search engines.
• Can learn many things from other bloggers.
• Get High Quality backlinks.
• Improve your alexa rank.

1. http://www.blogengage.com/

2. http://www.bizsugar.com/

3. http://dosplash.com/

4. http://www.kingged.com/

5. https://www.indiblogger.in/

6. https://inbound.org/

7. http://www.klinkk.com/

8. https://managewp.org/

9. http://www.inbound.org/

10. http://www.blokube.com/

11. http://www.blogadda.com/

12. http://triberr.com/

13. www.blogcatalog.com

14. http://www.blogher.com/

15. http://fuelmyblog.com/

16. http://www.socialbuzzclub.com/

17. http://www.thewriterssocial.com/

18. http://triberr.com/

19. http://www.blogadda.com/

20. https://medium.com/

21. https://stackstreet.com/

22. http://list.ly/

23. https://www.myspace.com/

24. http://aha-now.com/

25. http://alltop.com/

26. http://www.getblogtraffic.net/

27. http://www.wikia.com/

28. http://www.gather.com/

29. https://plus.google.com/communities

30. http://www.bloglovin.com/

You must join blogging communities if you want to make your blogging journey more successful. 

Read More

Blogging Communities to Promote and Drive Traffic to your Site

Getting traffic to your website or blog isn’t easy. It’s even more difficult if your site is new; you have to depend on other referral traffic sources as you won’t get much traffic from Search engines.

However, you can get some referral traffic from social media, guest blogging and blog commenting. But if you want some good referral traffic, you should join blogging communities. Blogging Communities helps you to promote your blog without much effort.

What are blogging communities and why you should join it?

Basically, blogging communities are like social networks for bloggers. Where we can meet and interact with other bloggers, engage and drive a good amount of traffic to our blogs. Since blogging community members are real bloggers, we can share our thoughts and ideas with them.

Benefits of joining Blogging Communities

• Helps you to meet and build relationship with other bloggers: This is one of the best benefits of joining blogging communities. You get to meet new faces and bloggers everyday.
• Share your post: you can share your recent post to the community and get traffic.
• Can engage and share each other’s stuffs: we can help each other to explore our blogs by sharing
• Get backlinks: usually blogging communities have good page rank and domain authority. You get some high quality link juice.
• Higher ranks: submitting your posts to blogging communities helps you to get good ranks
• Drive massive traffic to your blog: if you get some up-votes to your submitted post, you can get massive from these blogging communities, the key is to stay active on these communities.
• Get new trends: since people are sharing their latest posts, you’ll get insights of new trends and ideas. This will help you to improve your blogging knowledge.

BlogEngage: BlogEngage is the best and most popular blogging community founded by Brian Belfit. It is the best place to create relationship with fellow bloggers and to get more exposure and traffic to your blog posts. Blogengage has huge numbers of members and it’s still growing day by day. It has some premium features like chat rooms, private messages, groups etc. So, if you are struggling for getting traffic to your blog then blogengage will be the best place for getting quality traffic.

Blokube: Blokube is another best premium blogging community founded by Devesh (A young talented blogger). Blokube has also some premium features like Blog Syndication, Private Messaging, Share and Comment, Create Groups etc. Your posts can also appear in its home page by getting maximum up votes.

DoSplash: Dosplash is also one of the popular blogging community by Jane Sheeba (From ProBloggingSuccess) where you can promote your blog posts and can connect with other bloggers. Your posts can also be featured on dosplash by posting quality contents. DoSplash provides its members to promote their blog posts and get high quality backlinks from it.

Kingged: Kingged is another powerful blogging community where you can share your blog posts and moreover you will get high quality backlinks from it so that you can rank higher on search engines. Apart from this kingged also rewards it’s members by dropping comments, viewing posts etc and it also organised giveaways and contests to their members.

Indiblogger: Indiblogger is a blogging community where you can interact with other Indian bloggers. Indiblogger has lots of active members so that you can get more exposure and traffic to your blog posts and it also has some unique features like IndiVine, Meets, IndiSpire, IndiRank etc. but you have to be Indian to join Indiblogger.

Bizsugar: Bizsugar is another highly rated blogging community and it has a large numbers of active members from across the world. The blog community uses voting system means the more up votes you will get on your posts the more higher your blog posts will appear in the homepage.

ManageWP: ManageWP is a great and fastest growing blogging community where you can meet with like minded bloggers and developers. If you post articles related to WordPress then ManageWP will be the best place to get referral traffic.

Other Top Blogging Communities 

http://blogs.botw.org/

http://www.bloggeries.com/

http://www.scoop.it/

http://inbound.org/

https://news.ycombinator.com/

http://www.blogcatalog.com/

http://www.blogarama.com/

http://slashdot.org/

http://www.bloghub.com/

http://regator.com/

http://www.icerocket.com/

https://www.bloglovin.com/

http://portal.eatonweb.com/

http://www.ontoplist.com/

http://www.blogtagstic.com/

http://www.blogsearchengine.org/

http://globeofblogs.com/

http://www.bloggernity.com/

http://www.bloggapedia.com/

http://www.spillbean.com/

http://www.bloggingfusion.com/

http://www.blogflux.com/

http://www.bloglisting.net/

http://www.spreadmyblog.com/

http://www.topblogging.com/

http://www.millionbloglist.com/

http://www.buzzerhut.com/

http://www.aveblogs.com/

http://www.wilsdomain.com/

http://www.blogsrater.com/

http://www.blogowogo.com/

http://www.getblogs.com/

http://totalblogdirectory.com/

http://jenett.org/ageless/

http://www.blogratedirectory.com/

http://blogdire.com/

http://www.blogbar.net/

http://www.blogadr.com/

http://www.a1webdirectory.org/

http://www.blogsbycountry.com/

http://www.blogit.com/Blogs/

http://www.blogrankers.com/

http://www.web-dir.com/

http://us.loadedweb.com/

http://blogville.us/

http://www.lsblogs.com/

http://www.blogdirs.com/

http://www.bloggernow.com/

http://www.blogs-collection.com/

http://www.blogtoplist.com/

https://www.blogtopsites.com/

http://www.blogsrating.com/

http://blogwebdirectory.com/

http://www.bloggersdirectory.org/

http://blogannounce.info/

http://www.blog-directory.org/

Read More

Most Popular And Best Internet Search Engines in the World

An internet search internet can be described as the software system designed to search for information on the World Wide Web including web pages, images and all type of data available on web related to search query.

There are number of internet search engines available for finding queries in which some of considered as specified to region, data, information, language and users. Here we are talking about the best search engines so we consider the only which are most popular and widely used all over the world having fully customized setting with respect to area and information with massive unique users and pages per view.

These search engines are often ranked by different websites and corporation following these characteristics which have been discussed above. Here we have enrolled top ten best web search engines in the world; the list is given below for you.

Google

The most popular, widely used and dominant search engine all around the world Google market share is up to 65.6% which indexes billions of pages all times of all type including HTML, Docs, PDF, XML, MP3, MP4, audio, video and almost all kind of multimedia files exist on the extensively used search engine. Google has undoubtedly added in the list of top best internet search engines in the world because of its reliability, extensive sourcing, quick answering and responding queries in quite well manner with massive information. It also offers various features like Gmail, maps, docs, translate news and scholar for more refined search in specialized category.

Bing

Microsoft developed web search engine Bing is the widely recognized and used search engine all around the world which users have been drastically increased in last few years and have been developing with passage of time. One of best web search engine Bing provide various features to its users including interface updating, media based features, local information, Hotmail and Facebook integration, Apple and Windows 8 integration, multilingual and instant answering are some of exceptional thing for which most of people love to use it and ranked it among the top search engines in the world.

Baidu

Baidu is a world famous Search Engine based in CHINA MARKET. They have rich experience on CHINESE LANGUAGE Searching.

The Founder is Robin Li ,A genius in search algorithm, he was educated and doing research in USA before back to CHINA to start his own business.Baidu is considered to be widely used search engine in China which provided the index of more than 740 million web pages 80 million images, and 10 million multimedia files along with multimedia content like music and movies in different formats. The registered users are allowed to edit and replace any information present on the web engine and have been maintained under Chinese laws of internet search and information.

Yahoo

Since October 2011 Yahoo search is powered by Bing. Yahoo is still the most popular email provider and according to reports holds the third place in search.Yahoo Search is a web search engine owned by American multinational technology company Yahoo which is headquartered in California, United States. The third popular web search engine in the United States with respect to query volume Yahoo Search is among the best internet search engines on the planet. Yahoo Search indexed web pages including most of other formats like PDF, Excel spreadsheets, PowerPoint, Word documents against the search results by users. It also allows selection based search optional to its users who can enable or disable the options when needed while its search results have been considered as more reliable ones.

AOL

AOL is an internet search engine owned by American multinational mass media corporation based in New York which deals in technology and offer other products, content and services around their wide business span. The internet suite AOL has web browser, a media player and an instant messenger client which has been added among the best web search engine across the globe. AOL offers web results from Google and other combined multimedia sources and various partners from the servers to answer queries of what users search on the internet to gain information.

Ask.com

Formerly known as Ask Jeeves, Ask.com receives approximately 3% of the search share. ASK is based on a question/answer format where most questions are answered by other users or are in the form of polls. It also has the general search functionality but the results returned lack quality compared to Google or even Bing and Yahoo.

The AOL network includes many popular web sites like engadget.com, techchrunch.com and the huffingtonpost.com.

Blekko

Blekko, trademarked blekko, is online search engine that stand among the best and popular search engines around the globe having million of daily users and pages per view. IBM (International Business Machines) acquired the search engine in March of this year which features include search engine optimization statistics, linking pages, IP address lookup, tagging of pages, comparing sites, and crawl statistics among others. The search engine also offers a downloadable browser toolbar which automatically default search and home page of user’s browsers, allow users a wide search on all topic because of having massive data sources.

DuckDuckGo

DuckDuckGo has a clean interface, it does not track users, it is not fully loaded with ads and has a number of very nice features (only one page of results, you can search directly other web sites etc). DuckDuckGo can be described as one of best and most reliable search engines on the world and included by several search browsers as optional search engine while its new version also launched in last year which gave result in more refined manner with several additional features.

Wolfram Alpha

Wolframalpha is different that all the other search engines. They market it as a Computational Knowledge Engine which can give you facts and data for a number of topics. It can do all sorts of calculations, for example if you enter  “mortgage 2000” as input it will calculate your loan amount, interest paid etc. based on a number of assumptions.

Yandex

Yandex Search is one best internet search engine in the world which is owned by Russian based Internet Company Yandex which has 60% market share in Russia and considered as top ranked search engine in the country with respect to information. According to latest statistics Yandex has more than 50.5 million visitors on daily basis and to solve their queries is company’s mission explicit or implicit. The home page Yandex.ru has been rated most popular website in Russia which also operates in Belarus, Kazakhstan, Ukraine and Turkey.

WayBackMachine 

Archive.org is the internet archive search engine. You can use it to find out how a web site looked since 1996. It is very useful tool if you want to trace the history of a domain and examine how it has changed over the years.

ChaCha.com

According to alexa chacha.com is the 8th most popular search engine with a ranking position of 297 in the US. It is similar to ask.com where users can ask or answer a particular question. They also have a number of quizzes that can help you decide on a number of topics. It’s not bad at all and the answers are precise and to the point. For example if you search “What is the best search engine?” you will get an answer that Google is the best and most popular search engine and Yahoo is on the second place.

Read More