Go to the Mozilla Addon-Site https://addons.mozilla.org/en-US/firefox/addon/9403
Go to SenSEO download to download the current version of SenSEO. First of all it is important to know how to deal with SEO. The SenSEO-rules try to follow the Google Webmaster Guidelines http://www.google.com/support/webmasters/bin/answer.py?answer
35769&topic 15260 Go to Google Webmaster Guidelines .
Xenus Link Sleuth checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets. It displays a continously updated list of URLs which you can sort by different criteria. A report can be produced at any time.
tags: WINE website-checker checker broken-links verifyDRKSpider is an open source website crawler (sitemap generator) and link checker.
tags: create-sitemap search-engine-optimization site-link-validator sitemap-generator website-crawlerCheck all internal links, redirects and file references (e.g. images)spell check, see how calculated link juice flows, validate HTML and CSS, custom search all pages for text/code
tags: links analyzer validation checker brokenIf you need more features than only a website link checker - such as XML sitemap (conforming to the standard protocol), html validity, essential SEO checks such as page title, headings, meta description and keywords - then try Scrutiny.In short, Scrutiny helps you manage and improve any number of websites.
tags: seo search-engine-optimization site-link-validator html-validator xml-sitemapA professional software for checking and editing missed links, TAG and Script errors of your website or MS html help contents automatically and easily.
tags: links broken-links hyperCheck for broken links on any website. Links that don't work damage your search rankings and provide for a poor user experience. No downloads - just enter the name (URL) of the website you wish to check.
tags: site-link-validator broken-links link-scanner dead-linkLink Evaluator is a Firefox extension designed to help users evaluate the availability of online resources linked to from a given Web page. When started, it automatically follows all links on the current page, and assesses the responses of each URL (link).
tags: broken-links site-link-validator error-404