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Home : How can I tell if a web page is secure?
Q10068 - FAQ: How can I tell if a web page is secure?

How can I tell if a web page is secure? *NEW* try the certificate lookup tool to see if a site has ssl installed

Anytime a web page asks you for sensitive information, you need to be able to identify if the page is secure or not.  The ability to recognize a secure web connection is extremely important as online fraud cases have increased substantially from year to year.  This FAQ is intended to guide you to safer online shopping.

What exactly do we mean by "secure"?

Anytime you view a web site information is sent from your computer to the web server and from the web server to your computer.  The transmission of this information is normally sent in "plain text", meaning anyone would be able to read it should they see it.  Now consider this.  Each piece of information transmitted traverses many computers (servers) to reach its destination.

Try it! - Windows Users, to see just how many machines your information traverses, follow these steps:

1) On your computer, click Start, then Run
2) Type "cmd" and click "OK" (or press Enter)
3) Type this in exactly:  tracert www.ssl.com
4) Press Enter

Each listing in the window is a different computer/router/switch (a "node" in networking terms).  Each "node" represents a point at which any data you send might be recorded!  It is not uncommon to see 20-30 listings.

Big deal, right?  Consider this the next time you type in a password or your credit card number.  Ah!  Therein lies the problem.  The solution to this problem is to encrypt this data for transmission.  Secure Sockets Layer (SSL) was created for this very purpose.

SSL uses a complex system of key exchanges between your browser and the server you are communicating with in order to encrypt the data before transmitting it across the web.  A web page with an active SSL session is what we mean when we say a web page is "secure".


How can I tell if a web page is secured?

There are two general indications of a secured web page:

1) Check the web page URL

Normally, when browsing the web, the URLs (web page addresses) begin with the letters "http".  However, over a secure connection the address displayed should begin with "https" - note the "s" at the end.

Try it! - Visit our home page (http://www.ssl.com).  Note the URL begins with the "http" meaning this page is not secure.  Click the link in the upper-right hand corner to "Log in".  Notice the change in the URL?  It now begins with "https", meaning the user name and password typed in will be encrypted before sent to our server.

2) Check for the "Lock" icon

There is a de facto standard among web browsers to display a "lock" icon somewhere in the window of the browser (NOT in the web page display area!)  For example, Microsoft Internet Explorer displays the lock icon in the lower-right of the browser window:

MS Internet Explorer Lock

As another example, Mozilla's FireFox Web Browser displays the lock icon in the lower-left corner:

Mozilla FireFox Lock Icon

THE LOCK ICON IS NOT JUST A PICTURE!  Click (or double-click) on it to see details of the site's security.  This is important to know because some fraudulent web sites are built with a bar at the bottom of the web page to imitate the lock icon of your browser!  Therefore it is necessary to test the functionality built into this lock icon.  Furthermore, it is very important to KNOW YOUR BROWSER!  Check your browser's help file or contact the makers of your browser software if you are unsure how to use this functionality.

Try it! - Visit our home page (http://www.ssl.com).  Click the link to "Log in" to initiate a secure session.  Note the lock icon display in YOUR browser.  Click the icon, or double-click (varies by browser), and examine the security information displayed about the web site.  If there is no display at the bottom of your browser try clicking "View" in the main menu and make sure "Status Bar" is checked.

Other Indicators of a Secured Web Page

Many SSL Certificate vendors (Verisign, GeoTrust, SSL.com, etc.) also provide a "site seal" to the owners of these web sites.  Common characteristics of these site seals include:

  • High Visibility - Online merchants want you to see these site seals.  They want you to know they have made every effort to make their site a safe shopping experience.  Therefore, the site seal is usually located where you, the customer, can easily see it.
  • Difficult to Duplicate - The site seals are designed to be difficult for thieves and scammers to duplicate.  Many times the site seal will have a date and time stamp on it.
  • Verification Functionality - The site seal should have some functionality whether by clicking on the seal or by hovering your mouse over the seal.  The functionality should display detailed information about the web site you are visiting.

These site seals should not necessarily be trusted on their own, but should serve as a reminder to "investigate further"...

1) Check for that "https" in the prefix of the web page address.

2) Click on that "lock icon" in the status bar of your browser.

If everything looks good, the company or individual(s) running that web site have provided you with a safe means of communicating your sensitive information.  The web page is "secure".

Browse Safely!

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Very informative. Answered all of my questions Approved: 2/24/2016
written clearly Approved: 10/3/2015
everything i wanted to know for my report Approved: 9/24/2015
very clear, and lots of examples and tings to check. Thanks Approved: 8/31/2015
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Does not cover how one can tell that an http site is using a wrapper from an https site to securely transmit credit card information from the http site. Approved: 4/1/2015
good Approved: 3/27/2015
I just wanted to know about the secured site Approved: 3/17/2015
I would like to know situation without lock symbol. Otherwise really great information. Approved: 2/12/2015
very good detail .. Approved: 2/5/2015
excellent information Approved: 1/31/2015
How would I choose to hover/click over a site seal when you havent shown what one looks like? Also, I am reading your info on an iPad which doesnt show a toolbar, so you might consider this detail, as if I was mobile I would be using this device, therefore not be able to test certain items you suggest Approved: 1/25/2015
!!!! NOTE !!!! your SSL test no longer works, http://ssl.com redirects to https://ssl.com. also, while the information is technically correct, you should mention that although the web site page might be secure, the page might be owned by hackers, there may be links or advertisements that are malware or worse.. I.E. just because a web site utilizes an SSL cert, does NOT buy the consumer any security at all !!!! Approved: 1/21/2015
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I especially liked the informative video "Secure Websites in Plain English" Approved: 12/8/2014
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easy to understand. Approved: 8/30/2014
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Very helpful Approved: 7/17/2014
i like it somewhat u can check the other website is it a scam or a secure website if is provided with screenshot everytime u saying what was above it look even better to prove what u trying to say cause some people dont really understand profound or simple english cause they been using other language then english so add in with screenshot to show what you trying to say is even better and more people will rate 10 marks guaranteed i bet! Approved: 7/15/2014
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I actually want to know ,how the website user can make sure that he is visiting the correct website. Is there a way by which the website can display some information to the user by which he can make sure that hes visiting the correct website before entering any of his private information . Approved: 5/23/2014
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Some sites are https but dont carry the lock. Some sites have some insecure content despite having the lock and https. It would be helpful to cover these topics too. Approved: 4/28/2014
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Clear and jargon free. Approved: 4/15/2014
Just because information is sent across the Internet in an encrypted manner does not mean that my information is secure. For example, a site that lets me "log in" with just my email address and last 4 of SSN is not secure by any sense however I could have it covered with padlocks and security seals. My data could also be stored in clear text in a database that is backed up to a USB drive and carried home each night. Your information is accurate, and necessary, but a padlock is useless if it is on the equivalent of a paper bag. Approved: 3/16/2014
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thank you for the good graphics, hand motions that clarified to what you were referring and the simple language. Approved: 1/20/2014
I had just started to type some sensitive information onto a site when I noticed there was no https or lock icon. I was searching to see if there was anything I had missed. Considering the kind of site it was, I was surprised not to find anything that verified security. This helped. I backed off from the site. Thanks ... Ill bookmark this information. Approved: 1/16/2014
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helpful Approved: 2/3/2013
Gave good information, but Im seeing sites that have the "s" after http, but dont have the lock icon, and am wondering if theyre safe. When I click the refresh button, I see a flash image of the lock where its supposed to be, but instantly disappears. So, not sure its safe. But like the information. Correction, clicked on the arrow icon in the url window, and the lock icon appeared normal. thanks. Approved: 12/10/2012
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Very precise and clear information about SSL. Approved: 7/25/2011
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i learned more about web page security Approved: 7/24/2011
please explain ,lock icon dosent mean security ,only the s does ? https ??? if got s ,thats all you need ? Approved: 7/22/2011
Good information & easy to understand...but still have to jump through hoops to check each situation...through no fault of yours...thanks for the much appreciated information. I just tried...the ssl & found that the dmv site for me to renew my vehicle registation was not a secure site..even though I have firewall on my laptop...the premature comment was just that. I apologize for commenting before actually trying it out. Lesson learned thanks to your consise direction for a safe experience on the web. Approved: 7/20/2011
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Created on 8/26/2004.
Last Modified on 10/26/2015.
Last Modified by Administrator.
Rated 6 out of 10 based on 4575 votes.
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