The term web standards can mean different things to different people. For some, it is simply 'table-free sites', for others it is 'using valid code'. However, web standards are much broader than that. A site built to web standards should adhere to standards (HTML, XHTML, XML, CSS, XSLT, DOM, MathML, SVG etc) and pursue best practices (valid code, accessible code, semantically correct code, user-friendly URLs etc).
In other words, a site built to web standards should ideally be lean, clean, CSS-based, accessible, usable and search engine friendly. In addition to the checklist below, we will use the following sites to test validation for the work we do for our clients:
XHTML Validator: http://validator.w3.org/
CSS Validator: http://jigsaw.w3.org/css-validator/
Accessibility Guide: http://www.w3.org/TR/WCAG10/full-checklist.html
The checklist
The following checklist is used by our staff to ensure we acheive high Web standards. This is not a perfect checklist, there are probably many items that could be added. It should also be noted that this is a list of items that we feel must be addressed on every site that we develop. It is simply a guide that can be used as a handy tool for developers during the production phase of websites as well as to communicate to our prospective clients how we achieve high web standards.
Quality of codeDegree of separation between content and presentation
- Does the site use a correct Doctype?
- Does the site use unnecessary classes or ids?
- Is the code well structured?
- Does the site use a Character set?
- How does the site perform in terms of speed/page size?
- Does the site use Valid (X)HTML?
- Does the site use Valid CSS?
- Does the site use any CSS hacks?
- Does the site have any broken links?
- Does the site have JavaScript errors?
Accessibility for users
- Does the site use CSS for all presentation aspects (fonts, colour, padding, borders etc)?
- Are all decorative images in the CSS, or do they appear in the (X)HTML?
Accessibility for devices
- Are "alt" attributes used for all descriptive images?
- Is there sufficient colour brightness/contrasts?
- Is colour alone used for critical information?
- Is there delayed responsiveness for dropdown menus (for users with reduced motor skills)?
- Are all links descriptive (for blind users)?Does the site use relative units rather than absolute units for text size?
- Do any aspects of the layout break if font size is increased?
- Does the site use accessible forms?
- Does the site use accessible tables?
- Does the site use visible skip menus?
Basic Usability
- Does the site work well when printed?
- Is the content accessible with images switched off or not supported?
- Does the site work well in Hand Held devices?
- Does the site include detailed metadata?
- Does the site work acceptably across modern and older browsers?
- Is the content accessible with CSS switched off or not supported?
- Does the site work in text browsers such as Lynx?
- Does the site work well in a range of browser window sizes?
Site management
- Are heading levels easy to distinguish?
- Are visited links clearly defined?
- Is the site's navigation easy to understand?
- Is the site's navigation consistent?
- Does the site use consistent and appropriate language?
- Is there a clear visual hierarchy?
- Does the site have a sitemap page and contact page? Are they easy to find?
- For large sites, is there a search tool?
- Is there a link to the home page on every page in the site?
- Are links underlined?
- Does the site have a favicon?
- Do your URLs work without "www"?
- Does the site have a meaningful and helpful 404 error page that works from any depth in the site?
- Does the site use friendly URLs?


