Check Your Web Site

Use these tools to quickly check the pages of your site for valid markup, accessibility, usability, browser compatibility, spell checking, etc.

You may also want to review the Top Ten Web Design Mistakes and check out the Sherlock tool.

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Xenocode Browser Sandbox

Test your site in the most popular browsers, running directly from the web. Now you can test your pages in all versions of Internet Explorer, Firefox, Opera, Safari, and Chrome without installing them.

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Total Validator

An all-in-one validator comprising a HTML validator, an accessibility validator, a spelling validator, a broken links validator, and the ability to take screenshots with different browsers to see what your web pages look like.

URL:

Validation Options

HTML Validator:	Auto-detect Best-fit XHTML 1.1 XHTML 1.0 Strict XHTML 1.0 Transitional XHTML 1.0 Frameset HTML 4.01 Strict HTML 4.01 Transitional HTML 4.01 Frameset HTML 4.0 Strict HTML 4.0 Transitional HTML 4.0 Frameset ISO/IEC 15445:2000 HTML 3.2 HTML 2.0
Accessibility:	US Section 508 WCAGv1 Priority 1 (A) WCAGv1 Priority 1,2 (AA) WCAGv1 Priority 1,2,3 (AAA) WCAGv2 A WCAGv2 AA WCAGv2 AAA
Screenshot:	Lynx v2.8 IE v8 IE v7 IE v6 IE v5.5 IE v5 Firefox v3.5 Firefox v3 Firefox v2 Firefox v1.5 Firefox v1 Safari v4 Google v1 Mozilla v1.7 (Netscape v7) Netscape v6.2 (Mozilla 0.9) Netscape v4.8 Opera v9 Opera v8 Opera v7 Lynx v2.8 Firefox v3.5 Firefox v3 Firefox v2 Firefox v1.5 Mozilla v1.7 (Netscape v7) Opera v9 Konqueror v4 Epiphany/Gnome v2
Spell check:	American British French Italian Spanish German
	Check for broken links
	Show warnings
	Show on success
	Short report

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Electrum SortSite

Scans the first 10 pages of a web site, testing for quality checkpoints, including accessibility, browser compatibility, broken links, and standards compliance.

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UITest.com

Comprehensive launch pad for checking your page with over 20 tests, including validation, accessibility, performance, spelling, links, etc.

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ZDNet's NetMechanic Toolbox

Finds broken links, spots bad HTML code, checks browser compatibility, finds slow-loading pages, and checks your spelling, all in one shot.

URL:

Pages:    This page only    First 5 pages

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Truwex Online Tool

Check accessibility (WCAG and Section 508), privacy (including PII -- personally identifiable information), page quality (broken links, missing items), and interaction behavior.

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Web Page Performance & Speed Analyzer

Calculates page size, composition, and download times, including the size of individual elements and web page components. Offers advice on how to improve page load times.

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Pingdom: Detailed Load Time Analysis

Calculates and displays a numeric and graphical load time analysis of all internal and external page objects, including XHTML, RSS, XML, CSS, Scripts, Images, and Plugins.

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W3C HTML/XHTML Validator

Checks your pages for correct HTML and XHTML markup.

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W3C CSS Validator

Checks your pages for correct Cascading Style Sheet (CSS) markup.

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W3C Link Checker

Check all the links on your site.

Enter the address (URL) of a document that you would like to check:

Options

Summary only
Hide redirects: all for directories only
Don't send Accept-Language headers
Check linked documents recursively, recursion depth:

Save options in a cookie

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WAVE Accessibility Evaluation

Helps check your page for accessibility for people with disabilities.

URL:

File: 

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Cynthia Says Accessibility Validation

Identifies errors in your content related to Section 508 standards and/or the WCAG guidelines.

URL:

Accessibility Report Mode Section 508 WCAG - Priority 1 WCAG - Priority 1,2 WCAG - Priority 1,2,3

Do not fail pages for WCAG 1.0 Priority 2 and 3 errors, simply warn me.

Include the Alternative Text Quality Report

Include File source on Accessibility Failures

Run the Potential Screen Movement and Flickering Report

Test for animated Gifs - Could add time to processing

Emulate this Browser:

Cynthia 1.0 MS Internet Explorer 6.0 MS Internet Explorer 5.5 MS Internet Explorer 5.01 MS Internet Explorer 5.0 MS Internet Explorer 4.4 MS Internet Explorer 4.01 MS Internet Explorer 4.0 MS Internet Explorer 4.0 Compatibility Mode MS Internet Explorer 4.0 Solaris Netscape 6.0 Netscape 6.1 Netscape 4.5 Netscape 4.5 Mac PPC Netscape 4.0 Netscape 4.0 OS/2 Netscape 4.0 Win 3.x Netscape 4.0 Linux Netscape 3.0 Netscape 3.0 SunOS Netscape 3.0 OS/2 Netscape 2.0 Opera 3.0 Opera 3.1 Opera 3.2 Opera 3.21 Opera 3.5 Opera 3.6 Lynx WebTV

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EvalAccess 2.0 Accessibility Checker

Check a single page or entire site for conformance to WCAG 1.0.

Check Single Page

URL:

Show errors* with: Priority levels 1 - 2 - 3 1 - 2 1

Show warnings**

Check Entire Site

URL:

Depth: 1 2 3

Maximum number of URLs to evaluate: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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ATRC Accessibility Checker

Checks your page for accessibility issues against several accessibility guidelines. From the Adaptive Technology Resource Center (ATRC).

URL:

File:

Enable HTML Validator	Show Source
Guidelines to Check Against
BITV 1.0 (Level 2)	Section 508	Stanca Act
WCAG 1.0 (Level A)	WCAG 1.0 (Level AA)	WCAG 1.0 (Level AAA)
WCAG 2.0 (Level A)	WCAG 2.0 (Level AA)	WCAG 2.0 (Level AAA)

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Functional Accessibility Evaluator (University of Illinois at Urbana-Champaign)

Evaluates the functional accessibility of a single web page.

URL:

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HERA Accessibility Tester (WCAG 1.0)

Checks a web page against the WCAG 1.0 specification.

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Section 508 Accessibility Evaluation

Evaluates a web page against the Section 508 U.S. law standard.

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Robots.txt Checker

Analyzes the syntax of your robots.txt file to see if its format is valid as specified by the Robot Exclusion Standard.

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Mobile-Readiness Evaluation

Test the mobile-readiness of your site using industry best practices and standards.

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Browser Screen Resolution Checker

Simulates your web page in different screen resolutions.

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Screen Resolution:	- Please select the screen resolution - 544 x 378 (WebTV) 640 x 480 800 x 600 832 x 624 1024 x 768 1152 x 864 1280 x 1024

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Vischeck Page Simulator for Vision-Impaired Users

Select the type of color vision to simulate:

	Deuteranope (a form of red/green color deficit)
	Protanope (another form of red/green color deficit)
	Tritanope (a blue/yellow deficit- very rare)

URL: 

Select the type of color vision to simulate:

	Deuteranope (a form of red/green color deficit)
	Protanope (another form of red/green color deficit)
	Tritanope (a blue/yellow deficit- very rare)

Image file: 

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Colorblind Web Page Filter

URL:                      

Select Color Filter: protanopia (red/green color blindness; no red cones) deutanopia (red/green color blindness; no green cones) tritanopia (blue/yellow color blindness; no blue cones) grayscale/achromatopsia (quick check for all forms of colorblindness) atypical achromatopsia (low cone function; cone monochromat) protanomaly (anomalous red cones) deutanomaly (anomalous green cones) tritanomaly (anomalous blue cones) coverage test in black (highlight filter limitations) coverage test in white (highlight filter limitations) coverage test in gray (highlight filter limitations)

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AccessColor Contrast Analyzer

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, based on W3C Guidelines.

URL:

Show Only Errors Show Full report Show Source

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Color Contrast Check

Determines if two colors provide sufficient contrast to pass the W3C Accessibility Guidelines and Section 508 requirements.

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GrayBit Grayscale Page Simulator

Convert your full-color web page into a grayscale rendition in order to test the page’s perceived contrast for accessibility.

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Search Engine Browser Simulator

See your website like a search engine sees it.

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Link Popularity

Find out how many sites are linking to your site, and who they are.

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Keyword Selector

Use the Google Keyword Tool to help you select the best keywords for the META tags on your pages. Better keywords = increased traffic.

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Test the Readability of a Web Site

Provides content authors with an evaluation of the readability of their website and assists with Guideline 14 of the W3C Web Content Accessibility Guidelines (documents are clear and simple).

URL:

You can also copy and paste or enter the text you want to analyze:

Method: Flesch-Kincaid (English) LIX (Swedish, Danish) Fernandez-Huerta (Spanish) Douma (Dutch) Kandel & Moles (French)

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Audit It URL Checker

Use this handy tool to check which major search engines have included your site in their index and how many pages are included in their index.

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ZDNet's NetMechanic GIFBot

Optimizes GIF and JPEG images by up to 90% without loss of image quality.

URL:
What output image types would you like to see?
Same as input type GIF Only	JPEG Only Both GIF and JPEG

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Brown University's XML Validator

Validates XML documents locally or on the web.

File:

Suppress warning messages  Relax namespace checks

URL:

Suppress warning messages  Relax namespace checks

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XML & XML Schema Validator

Validates XML documents against an W3C XML Schema (XSD) or an XML Data-Reduced (XDR) schema, verifies the schemas are valid, or simply checks the well-formedness of XML documents.

Schema document:
NamespaceURI:
XML document:

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JSLint: The JavaScript Verifier

JSLint scans JavaScript source code, examining it for problems. If it finds a problem, it returns a message describing the problem and an approximate location within the code.