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Top 20 Biggest Websites In The World

Google is not the biggest website in the world.

It’s No. 2.

Do you know who’s No. 1?

Hint: It’s another American company.

By the way, guess how many of the top 20 websites in the world are Chinese.

1? 5? 10?

Thanks to ComScore, which provided us data on the top most popular Web domains in the world.


biggest websites in the world : ehack

biggest websites in the world : ehack

20. – 163 Million Unique Visitors – 163 Million Unique Visitors : ehack – 163 Million Unique Visitors : ehack

What it is: The ultimate online shopping destination for electronics, apparel, sporting goods, and even food.

How it got so big: When Amazon first launched, it was nothing more than a few people packing and shipping boxes of books. But it has since grown to shipping everything from trumpets to the Kindle Fire.


19. – 169 Million Unique Visitors - 169 Million Unique Visitors : ehack – 169 Million Unique Visitors : ehack

What it is: Chinese mobile portal for media and user-generated content.

How it got so big: In the early 2000s, Sina was known as the “Yahoo of China.” Sina launched microblogging service Weibo in 2009, and has grown to more than 400 million users.

Read the rest of this entry

How big are porn sites ?

Can you imagine, how much data is consumed by porn sites? How big they are?
It is a truth universally acknowledged, that a person in possession of a fast internet connection must be in want of some porn.

Data Center : ehack

Data Center : ehack

While it’s difficult domain to penetrate — hard numbers are few and far between — we know for a fact that porn sites are some of the most trafficked parts of the internet. According to Google’s DoubleClick Ad Planner, which tracks users across the web with a cookie, dozens of adult destinations populate the top 500 websites. Xvideos, the largest porn site on the web with 4.4 billion page views per month, is three times the size of CNN or ESPN, and twice the size of Reddit. LiveJasmin isn’t much smaller. YouPorn, Tube8, and Pornhub — they’re all vast, vast sites that dwarf almost everything except the Googles and Facebooks of the internet.

While page views are a fine starting point, they only tell you that X porn site is more popular than Y non-porn site. Four billion page views sure sounds like a lot, but it’s only when you factor in what those porn surfers are actually doing that the size and scale of adult websites truly comes into focus.

We’ll start by laying the ground work, and then on the second page we have some real world figures from YouPorn, the second largest porn site on the web. If you like, take a moment to try and estimate the amount of traffic that YouPorn handles every second. Let us know in the comments if your guess is anywhere near.


Xvideos ad planner : ehack

Xvideos ad planner : ehack

The main difference between porn and non-porn sites is the average duration of a visit: For a news site like Engadget or ExtremeTech, an average visit is usually between three and six minutes; enough time to read one or two stories. The average time spent on a porn site, however, is between 15 and 20 minutes.

Then you need to factor in that most websites are predominantly text and images, while the largest porn sites push streaming video. When you load the ExtremeTech home page, you’re talking about a couple of megabytes, and then maybe 500 kilobytes if you load an article. When you stream porn, assuming a low resolution of 480×200, you’re looking at around 100 kilobytes per second — which, over 15 minutes, is around 90 megabytes.

Then you need to multiply 90 megabytes by the number of monthly visits — which is around 350 million for Xvideos. This comes to around 29 petabytes of data transferred every month, or 50 gigabytes per second. To put this into comparison, your home internet connection is probably capable of transferring a couple of megabytes per second, which is about 25,000 times smaller.

In short, porn sites cope with astronomical amounts of data. The only sites that really come close in term of raw bandwidth are YouTube or Hulu, but even then YouPorn is something like six times larger than Hulu.


Serving up videos requires a lot more resources than plain text and images, in terms of storage, CPU cycles, internal I/O, and bandwidth.

While it obviously varies from site to site, most adult sites will probably store in the region of 50 to 200 terabytes of porn. This is quite a lot for a website (only something like Google, Facebook, Blogger, or YouTube would store more data), but in a world where 2TB drives are cheap and plentiful, this isn’t ultimately a very large amount.

CPU cycles and I/O will be a function of the bitrate of the streaming video and the number of page views. First the porn site has to serve up a dynamic, searchable database of thousands of videos, and then, when someone clicks on a video, that file needs to be read from a hard disk and streamed over the internet. If you’ve ever transferred a lot of big files over a local network (i.e. stressed both your hard drive and Ethernet port) you will know how taxing this is.

Actual hardware requirements are almost impossible to derive (they’re not publicized), but in the case of a large porn site we’re probably talking about racks of quad-CPU servers, gigabit switches, and load balancers. Software-wise, most large porn sites will use a very-high-throughput database such as Redis to store and serve videos, and a light-weight HTTP server like Nginx to serve up the web pages.

Finally, bandwidth. Referring back to our Xvideos example (based on an Ad Planner estimate), a large porn site will have to have enough connectivity to serve up 50 gigabytes per second, or 400Gbps. Bear in mind this is an average data rate, too: At peak time, Xvideos might burst to 1,000Gbps (1Tbps) or more. To put this into perspective, there’s only about 15Tbps of connectivity between London and New York.

There are only so many ways of coping with this much traffic: You set up your own data center, rent a few racks in a very large data center, or use a cloud provider like Amazon AWS or Microsoft Azure.



Original post at ExtremeTech

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Hack Your Life in One Day: A Beginner’s Guide to Enhanced Productivity

So you’re sold on the idea of “life hacks,” but every time you go to change your passwords, budget your money, or make a to-do list, you become overwhelmed. If you want to avoid dooming yourself to a non-productive life forever, this simple guide will get you started with the most essential life hacking tools in just one day.

If you’ve been reading Lifehacker for a long time, you already know LastPassDropbox,CrashPlan, and other tools backwards and forwards. This guide is for absolute beginners—the people who are ready to take the dive into better productivity, but don’t know where to start. Check it out for yourself (you never know what you might have missed) and pass it on to your friends and family during your next annual tech support session!

Back Up Your Computer Automatically with CrashPlan

Time Required: 30 Minutes
Tools You’ll NeedCrashPlan

How It Works: You’ve probably heard people say it a million times before, but you should really back up your computer—and not just to an external hard drive, either. A good, cloud-based backup ensures that you never, ever lose any of your important files—a pain that many of you already know—no matter what happens. The process only takes a little bit of time, and is dead simple to set up. Here’s how:

  1. Download and install CrashPlan, and set up a CrashPlan+ account if you want to back up to CrashPlan’s service (which wehighly, highly recommend).
  2. Start up CrashPlan. It will scan your system and suggest the folders that you should back up. Its suggestions should be fine for almost everyone.
  3. Choose a backup destination at the top of the window. If you’re backing up to an external drive, pick “Folders” and choose that drive from the list, and if you’re backing up to the internet, pick CrashPlan Central.
  4. Click the Start button to begin your first backup. It’ll take awhile, so don’t turn your computer off while it runs—it can even take up to a few days if you’re backing up to CrashPlan Central. Once it’s done, though, CrashPlan will back up only the files you’ve changed, every 15 minutes or so.

You can change a lot of other options in CrashPlan, as well as back up to different locations like another computer. This simple setup yields great results for most people. Once you’ve set it up, you’ll rarely—if ever—need to open CrashPlan again.

Alternative ToolsBackblazeMozy, and others for Windows and OS X

Create Better Passwords and Store Them in a Password Manager

Time Required: 2 Hours
Tools You’ll NeedLastPass

How It Works: Do you use the same password for nearly every site? Is it something easy to remember, like b00klover1? If so, then it’s time to audit your passwords and change them to something more secure. Not only are your accounts notoriously easy to hack , but if you use the same password on every site, you make it easier for one hacker to access all your online accounts. A password manager like LastPass will fix both of these problems.

First we’ll install LastPass, and then we’ll use its password generator to change all of your insecure passwords to something better. Here’s how to set it up:

  1. Download the LastPass extension for your browser and install it. Restart your browser if necessary.
  2. Set up a LastPass account and give it a strong password that you’ll remember. This generator can help you create one.
  3. Go to a site you use (say, Facebook), and head to the change password prompt, usually buried somewhere in the settings.
  4. Type your current password in the first box, then click on the box for your new password. Instead of making something up, click on the LastPass button in your browser toolbar and go to Tools > Generate Secure Password. It should generate a random string of characters for you—a truly secure password.
  5. Click Accept and LastPass will copy your new password into the “New” box on your account page. Confirm your password change. LastPass will save your new password so the next time you log in, it’ll autofill the password box before you and log you in.
  6. Repeat this process for the other sites you visit on a regular basis. You should use a different generated password for every site—that way, if one gets hacked, the hackers don’t have access to all your other web accounts too. You can change all your passwords now, or do it over time as you visit these other sites (email, Twitter, your online banking page, and so on).

It seems difficult, and you won’t be able to remember these passwords off the top of your head, but you’ll be much more secure (after all, the most secure password is one you can’t remember). When you need to type in passwords on your smartphone, you can either view your passwords in your LastPass vault on your computer (by clicking the LastPass button), from the LastPass mobile site, or by using the LastPass mobile app that requires a cheap subscription to use.

Alternative Tools1PasswordKeePass, and others

Keep All Your Notes in One Place with a Cross-Platform Note Taker

Time Required: 30 Minutes (more if you’re importing notes)
Tools You’ll NeedEvernote

How It Works: If you’re the kind of person that has Post-It notes all over your monitor, crumpled up pieces of paper in all your pockets, and endless reminders in a hundred different apps, it’s time to consolidate everything into one, cross-platform note-taker. Evernote is the most popular, and with pretty good reason: it can store anything you imagine in one central place, digitize your physical notes, manage to-do lists, and you can search for nearly anything with just a few taps. Nearly every person we interview about productivity names it as the number one app they couldn’t live without. And luckily, it’s very easy to get started with it.

  1. Download Evernote and install it on your computer and smartphone. If you don’t have an account, create one now.
  2. Start up Evernote, and start copying any notes you have in other programs into Evernote. You can create a new note by pressing the big “New Note” button at the top.
  3. Create a few notebooks—like Personal and Work—and add your notes to them from the “Notebooks” dropdown at the top. You can also create a few tags—like Projects, Articles, Lists, or whatever else—and assign them at the top of your note.
  4. To scan in any physical notes you have (like Post-It notes sitting around), just go to File > New Camera Note and take a picture of your paper note. Once you sync, Evernote will translate any text in the image so you can search for it as if it was a text note. Alternatively, you can just manually type in the note yourself.
  5. Install the Evernote Web Clipper extension for your browser, which will help you grab nearly anything from the web and send it on over to Evernote—articles you want to read, information you want to add to one of your notes, or even favorite tweets.

This is just a very basic setup. Unlike some of the other tools in this article, Evernote is more about using it than setting it up and forgetting it. Once you’ve got a few notes in there, though, you can use it to house just about anything. Jot down text notes, save pictures and diagrams, or even save audio notes straight from your phone. The more you use it to store and organize your stuff, the more it’ll help in your daily productivity. 

Alternative ToolsSimplenoteSpringpad, and others

Access Your Important Files Everywhere with Cloud Storage

Time Required: 30 Minutes
Tools You’ll NeedDropbox



How It Works: If you’re tired of emailing yourself files, you need to start using a cloud storage service. Cloud storage fixes the problem of multiple computers, which most of us deal with these days. Maybe you have a desktop and a laptop, or a computer at home and at at work. If you’re tired of emailing yourself files, it’s time to start using a cloud storage service like Dropbox. Once you set it up, you’ll forget it’s even there and all your important files will appear on all of your computers. You’ll even be able to grab them from the web if you’re on a computer that isn’t yours! Here’s how to set it up.
  1. Download Dropbox for your computers and install it on each one. When you first start it up, it’ll ask you to create an account, so do that now. By default, you’ll start with 2GB of space, but you can buy more (or get some for free—we’ll talk about that later).
  2. When you start Dropbox for the first time, it’ll ask you where you want to store your Dropbox folder. The default location is fine. Go through the wizard to finish up installation.
  3. Drag any important documents, folders, or other files into your Dropbox folder. You’ll see a blue sync badge appear on the icons while those files sync to the internet, and a green checkmark when they’re finished. Within minutes your files will appear in the Dropbox folder on all your other computers and everything will stay in sync.

It’s really that simple to use. Just start using your Dropbox folder as your main documents archive and everything will be synced to your other machines. You can do a ton more with it, too, like see old versions of your documents and share files with your friends. Just right-click on a file in your Dropbox and go to the Dropbox menu for those options. If you start running out of space in your Dropbox, check out our guide to getting more free space on Dropbox to add more.

Alternative ToolsBoxSkyDrive, and more

Automate Your Budget With Mint

Time Required: 1.5 Hours
Tools You’ll NeedMint


How It Works: We all have our financial vices, but no matter how committed you are to budgeting your money, it’s just so darn hard to keep track of. Mint is a free tool that makes it easy: it automatically tracks what you spend, categorizes it, and keeps you constantly up-to-date on how well you’re sticking to your budget for those categories. Once you’ve set it up, you won’t have to do anything; Mint tracks it all for you. Here’s what you need to do:

  1. Head to and create an account. It’ll take you through a short wizard where you’ll be asked to provide information about your bank accounts, so it can see your recent transactions.
  2. Once all your bank accounts have been imported, head to the Spending History page. You should see a list of transactions much like the one you’d see on your bank’s web site, except that each transaction will have a category like Groceries, Music, Food, and others. Mint does this automatically, but if it gets something wrong, you can always change the category yourself by clicking on the item and clicking the arrow next to the category name.
  3. Once you’ve cleaned up your categories a little bit (if necessary), you go to the Budgets tab. Mint will start you off with a few common ones, but you can edit them to reflect how much money you’d like to budget for food, gas, clothing, and other items every month.
  4. Once you’ve imported your accounts and set up your budgets, the only thing you’ll need to do is check in regularly and make sure everything’s properly sorted. Change any categories that don’t seem right, add any cash transactions you’ve made with the “Add a Transaction” button, or go to Edit Details > Split to split a transaction (like an ATM withdrawal) into multiple ones.

With just a bit of regular upkeep, you’ll be able to get an accurate picture of your budget at any time from Mint’s web site or their mobile app for iPhone or Android. It still requires you take an active role in managing your budgets, but it’s much much easier than doing it all by hand, since Mint already tracks and categorizes everything you spend.

Alternative ToolsYou Need a BudgetQuicken, and others

Save Yourself Hours of Typing with Text Expansion

Time Required: 30 Minutes
Tools You’ll NeedPhraseExpress (Windows) or TypeIt4Me (Mac)


How It Works: We all have a few things that we type over and over again every day. Maybe it’s your address, a reply you send to a common email, a template for a document, or even a complicated character that doesn’t have a shortcut on your keyboard. Text expansion saves you time by letting you type these large blocks of text with just three or four keystrokes.For example, say I have to type out my address a few times a day. Instead of trudging through it every time, I could set up a “snippet” that types my entire address when I type ,home. Immediately after I type those four characters, my entire address shows up preformatted, so I can move on to more important things. Add in all the other repetitive typing you do, and you can save yourself quite a bit of time and frustration over the day. Here’s how to set it up:

  1. Download and install a text expander like PhraseExpress (for Windows) or TypeIt4Me (for OS X). Start it up to see your current list of snippets—it’ll usually come with a few to start you off, but you can delete them if you like (in fact, if you’re using PhraseExpres, you should delete them-they’ll cause more problems than they solve, and the “Websites” folder is particularly annoying).
  2. To create one, click the New button and type the full snippet—that is, the text you want to finish with (like your full address)—in the big content box. Give the snippet a label (like “Address”) and an abbreviation (the short text you’ll type to insert your snippet, like ,home. Save your snippet to finish.
  3. Open up a text editor and try your snippet out. If it works, you’ve done it correctly, and you can repeat this process with other snippets you want to add. You may only be able to think of a few now, but as you go about your work, you’ll find tons of other text blocks that you type throughout the day that you can then go put into your text expander.

It sounds a little silly at first, but it really will save you time once you start using it. You can add your address, email signature, phone number, email address, or other salutations to your text expander and use them all day long. You can even tell your snippet to put your cursor in a certain location after you expand it, or tell it to paste the contents of the clipboard at a certain spot in your snippet (like someone’s name for salutations in a letter). It’s only limited to what you can think up. Check out the further reading section for ideas on how to use this genius tool.

Alternative ToolsBreevyTextExpander.

Access Your Home Computer From Just About Anywhere

Time Required: 30 Minutes
Tools You’ll NeedTeamViewer


How It Works: Dropbox can help keep your files in sync between computers, but what if you need to check on something on your home computer while you’re out and about with your laptop or phone? This is where remote access comes in. With a program like TeamViewer, you can immediately log into your home computer and use it as if it were sitting right in front of you, which can be a lifesaver. Setting it up is very easy:

  1. Download and install TeamViewer on all your computers. Start it up and create an account by going to Connection > Set Up Unattended Access. This will make all your computers accessible with just a quick username and password combo.
  2. Log Into your account on your home computer. You should see that computer’s name in TeamViewer’s list of computers on the right-hand side. Leave TeamViewer and this computer running when you leave the house.
  3. When you want to use that computer from afar, start up TeamViewer on your second computer and log into your account. You should immediately see your first computer in the list. Double-click on it to log into it and use it remotely. You can perform tasks, grab files you’ve forgotten, or do just about anything else as if you were using it directly.

Simple, huh? You can even download their mobile app and use your computer from your smartphone or tablet, which is really amazing.
Alternative Tools: Windows’ Built-In Remote Desktop, OS X’s Built-In Screen Sharing.


Original Post at lifehacker

Thanks for reading. hope it might helped you.

How much data is consumed every day, every hour, every minute ?

 How much data do you use in a minute? Uploading a photo to Facebook, tweeting, and browsing the Web on your mobile device: it all adds up. Here’s what we use in a single minute.

DatainOneMinute : ehack

DatainOneMinute : ehack


Each and every minute of the day, vast amounts of data is generated from ordinary activities: from online shopping to phone calls, bog-standard Web browsing and accessing social media outlets.

The next time you perform a Google search, you are one in about two-million users who are doing the very same thing at that same moment. Google handles this every second of the day, as does Facebook with more than four billion things shared daily and Twitter with its 340 million tweets per day — yesterday’s outage notwithstanding.

Perhaps a more daunting figure: we spend more than $1 million in online stores every five minutes. Who said we were in back a recession?

In that same amount of time, brands are propped up by close to a quarter-million ‘likes’ on Facebook, and more than a billion emails are exchanged.

The stats are baffling, and downright crazy. Here are the numbers you need to know.

  • Email users send more than 204 million messages;
  • Mobile Web receives 217 new users;
  • Google receives over 2 million search queries;
  • YouTube users upload 48 hours of new video;
  • Facebook users share 684,000 bits of content;
  • Twitter users send more than 100,000 tweets;
  • Consumers spend $272,000 on Web shopping;
  • Apple receives around 47,000 application downloads;
  • Brands receive more than 34,000 Facebook ‘likes’;
  • Tumblr blog owners publish 27,000 new posts;
  • Instagram users share 3,600 new photos;
  • Flickr users, on the other hand, add 3,125 new photos;
  • Foursquare users perform 2,000 check-ins;
  • WordPress users publish close to 350 new blog posts.

Data courtesy of Domo.

Orginal Post at —


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