In general, validation is a process where we check out the data against a standard or requirement. And if we come across the website validation phenomena then it becomes very important to verify the quality and correctness of web page code.
Valid codes are what a web browser’s program use to read any web page and cannot afford to take lightly.
Before launching any new website we should not overlook the check and test process for a website that actually helps us to ensure that whether web pages working or not with great looks. Validating a website helps in many ways. From making it load right / the same in all browsers to helping you in the SEO area.
Single small mistake is much enough to drive your website to fatal error and take away users and hurts reputations. Therefore, it becomes quit necessary to test our website through all-important treatments. Luckily, there are many great tools available online to help us in web development projects.
Lets move on to compilation of Technology To Software of 23 Highly Useful Online Tools For Website Validation which hopefully gonna to reduce your headaches and usable in gaining more profits.
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1. Accessibility with style
HERA is a tool to check the accessibility of Web pages accoridng to the specification Web Content Accessibility Guidelines(WCAG 1.0). HERA performs a preliminary set of tests on the page and identifies any automatically detectable errors or checkpoints met, and which checkpoints need further manual verification.
2. Checklink
This Link Checker looks for issues in links, anchors and referenced objects in a Web page, CSS style sheet, or recursively on a whole Web site. For best results, it is recommended to first ensure that the documents checked use Valid (X)HTML Markup and CSS.
3. CSS validator
you want to validate your CSS style sheet embedded in an (X)HTML document, you should first check that the (X)HTML you use is valid. It is a part of theW3C’s.
4. Color contrast
AccessColor tests the color contrast and color brightness between the foreground and background of all elements in the DOM to make sure that the contrast is high enough for people with visual impairments. Assuring that you provide enough color contrast between foreground and background colors takes time and we hope that this tool will help web developers to build accessible websites by visually flagging the section(s) of a page with problematic color combinations.
5. Dr. Watson’s site validation check
Dr. Watson for Windows is a program error debugger that gathers information about your computer when an error (or user-mode fault) occurs with a program. Technical support groups can use the information that Dr. Watson obtains and logs to diagnose a program error.
6. Firebug Firefox Extension
Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
7. HTML Validator
HTML Validator make you know about the common validation errors. And also provide Offline HTMLHelp Validator.
8. Load Impact
Load Impact is an online load testing service that lets you load- and stress test your website over the Internet. You can have several different test configurations and run the tests whenever you want. The test results are stored on the system for easy access at any time.
9. Mobile checker
This checker performs various tests on a Web Page to determine its level of mobile-friendliness. The tests are defined in the mobileOK Basic Tests 1.0 specification. A Web Page is mobileOK when it passes all the tests.
10. Pingdom tools
If you like Pingdom Tools you can include a banner on your website that lets all your visitors use it. You add it with just a few lines of HTML code. Pingdom offers cost-effective and reliable server, network and website monitoring. We use a global network of servers to monitor our customers’ sites 24/7, all year long.
11. Robots checker
Robots.txt files (often erroneously called robot.txt, in singular) are created by webmasters to mark (disallow) files and directories of a web site that search engine spiders (and other types of robots) should not access.
12. RSS feeds
This is the W3C Feed Validation Service, a free service that checks the syntax of Atom or RSS feeds. The Markup Validation Service is also available if you wish to validate regular Web pages.
13. Section 508
Is your web page up to section 508 standards? Are you breaking the law? Find out for free with the Section 508 checking tool. The Section 508 checking tool automatically compares your html code against Section 508 checklist and shows your results quickly. Results are simple to understand too!
14. Unicorn
It is a part of W3C where a document should have passed the test.
15. URL checker
InternetSupervision is a service that monitors the availability of HTML, FTP, SMTP, POP3 email servers), supervises the performance of website and ecommerce transactions (including website forms) and provides website content supervision (cyber-attack monitoring).
16. W3C markup validation service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. This validator is part of Unicorn, W3C’s unified validator service.
17. Web page reports
It is just a simple tool generating links to the report pages of some of those services, including emulators, validators, and accessibility checkers. And it’s handy to have a list of all the results pages, for example when sending a status report to a client about a website that’s being worked on.
18. WebSitePulse Test Tools
WebSitePulse is a leading provider of advanced, independent and remote monitoring services that enable clients to increase the efficiency of their mission-critical e-business operations, and to reduce their risk of failed Internet transactions and loss of revenue. Cost-effective, easy-to-use Monitoring Services are available to meet every need and every budget.
19. Webaccessibility checker
This tool checks single HTML pages for conformance with accessibility standards to ensure the content can be accessed by everyone. See the Handbook link to the upper right for more about the Web Accessibility Checker.
20 Spoon Browser Sandbox
Spoon’s vision is to make the world’s apps available instantly on any desktop. Install Spoon Browser Plugin and get access of your web page information instantly.
21. XML well checker and validator
Use this form to check an XML document for well-formedness and (optionally) validity. External entity references are included, even when not validating. If the document is well-formed, the parser outputs the corresponding canonical XML.
22. Browser shots
Browsershots makes screenshots of your web design in different operating systems and browsers. It is a free open-source online web application providing developers a convenient way to test their website’s browser compatibility in one place. When you submit your web address, it will be added to the job queue. A number of distributed computers will open your website in their browser. Then they will make screenshots and upload them to our central dedicated servers for your review.
23. Viewlike
We’re a brand new site that allows you to check out how your website looks in the most popular resolution formats. It’s all powered by Ajax & PHP so no need to download anything!
Wow, the browser shots site is great. I will be bookmarking this one. The contrast checker is very interesting. But I have the feeling that I will fail there every time
. And about the css validator, I want to say that there are many thing that do not validate there, but this does not mean that you should not use it 
.
Thanks.
the problem is to repair the errors when i validate my site it require programming skills.
Great post… I have put markup and W3C validators on http://www.webauditapp.com if anyone wants to use them from one screen.
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Thanks for the effort you took to expand upon this post so thoroughly.
Why valid html code is important to your web site’s search engine optimization efforts and consequent high rankings! Such invalid html codes… A single missing bracket in your html code can be the cause your web page cannot be found in search engines… Providentially, there are free services that allow you to check and fix the validity of your html codes.
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Multi tool website: http://www.online-toolz.com
another multitool site for webmasters http://www.net-tools.eu
This is very informatics article for all readers and this is a nice shearing in my eyes. Keep moving!
Big Thanks for the article RSS feed added
Thank you so much for this tutorial. I really learned alot from it. Thank you again.
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I honestly enjoyed glancing through your articles. I hope there will be more to come.
BrowserShots was once an excellent service. It’s essentially a web application providing developers with a view of their website design in a vast array of different operating systems and web browsers. | instant tax solutions complaints