About the ‘Develop’ Section

These tools are intended to help web developers, both amateur and professional. First listed are ‘validation’ tools which allow you to check if a page’s markup, style sheets, links, and accessibility is up to various standards. One that was not included is Doctor HTML, as it prevents access from external websites (e.g. this one). Another is the CSE HTML Validator, which is software that you run on your own computer. The other tools analyze the speed of your web site, the spelling, readability, keywords, etc. Additionally, HTML Authoring Services by Delorie Software provides a number of services similar to those from this page.

Below is a listing of the tools in this section, along with their descriptions.

Validate

W3C (HTML)
The World Wide Web Consortium’s Markup Validation Service. It validates all forms of HTML and XHTML, showing where errors occur and what those errors are.
WDG (HTML)
The Web Design Group’s HTML validator. It is similar, but not exactly the same as the W3C’s validator.
Bobby (WCAG)
This validator tests webpages according to the W3C’s Web Content Accessibility Guidelines 1.0. It shows errors and potential errors, and recommends how to fix them.
Bobby (508)
This validator tests webpages according to the United States Section 508 Guidelines. It shows errors and potential errors, and recommends how to fix them.
WAVE (accessibility)
The Web Accessibility Versatile Evaluator adds errors, alerts, and other comments about accessibility (including WCAG 1.0 and Section 508) right onto a copy of the webpage. A second page shows the legend for the many icons which WAVE uses.
Cynthia (WCAG)
This validator tests webpages according to the W3C’s Web Content Accessibility Guidelines. For each guideline it shows how the webpage fared against it. Also verifies that alternative image text is done properly.
Cynthia (508)
This validator tests webpages according to the United States Section 508 Guidelines. For each guideline it shows how the webpage fared against it. Also verifies that alternative image text is done properly.
W3C (links)
The World Wide Web Consortium’s link checker will verify all the links on a single webpage, and lists those that are broken or redirects.
W3C (CSS)
The World Wide Web Consortium’s CSS Validation Service. It shows where errors occur and what those errors are, shows warnings, and lists all the valid style information.
Silktide
Silktide’s SiteScore rates a website on marketing, design, accessibility, user experience, and visitor rating, with a detailed report on each.

Popularity

Traffic (Alexa)
Shows a (logarithmic) graph of a website’s (not a web page) popularity over time, as determined by Alexa. Alexa gathers this data from users of their toolbar. The six-month graph is shown by default. You can also use this tool to compare the popularity of a second website. Also shown are popular subdomains, reach per million users, average page views per user, etc.
PageRank
This tool allows you to see the Google’s PageRank™ (rough measure of popularity) for any page. It is not provided directly by Google, so could potentially be inaccurate.

Other

Spell Online
Spell Online will check the spelling of web pages in English, French, Italian, Portuguese, and Spanish. Note that only English is currently supported from this tool.
Speed Report
The Web Page Speed Report by WebSiteOptimization.com tells you how long it will take for users with various Internet speeds to download a webpage. It includes details on the whole page, along with included images, style sheets, scripts, and other objects.
Cacheability
The Cacheability Engine, by Mark Nottingham, provides details of some HTTP headers, and information about how cacheable any web page is, along with the same details for all the embedded objects (images, stylesheets, scripts, etc.).
Readability
This Readability Test, by Juicy Studio, rates a web page against thre different readability algorithms, and provides some information about them.
Keyword Analyzer
The ‘META Tag Analyzer’ suggests how you can improve your meta tags, shows keyword frequency and/or density for text, link text, and alternative text words, and also lists all the outbound links.
View HTTP
Web-Sniffer (View HTTP Request and Response Header) shows the HTTP headers sent and received, and the source code of the page.
GetContentSize
This tool written by Adrian Holovaty displays the size of a web page (in bytes, excluding external files), the size of the “text” (roughly non-style, non-formatting code), and the percent of the page that is text.
The ‘Develop’ section includes 22 tools. Return to the URLinfo main page.

information

This page was last updated on August 15, 2004. See the revisions log for more information.