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Link Checker script in PHP


The script reports the following errors:

  • Broken links
  • Invalid URLs, including URLs containing unencoded characters
  • Missing or invalid mime, charset, title, description/keywords meta tags, canonical/prev/next links
  • Bad encoding for UTF-8 webpages

The script checks for errors in the following locations:

  • HTTP headers: Content-Type, Link, Location
  • HTML tags: a, base, embed, iframe, img, input, link, meta, object, script, title
  • URLs in CSS files
  • URLs in Robots.txt files
  • URLs in sitemaps


  • The script is tested to index up to several millions URLs. If you plan to use the script on a larger website, please, contact us.
  • Crawling rate is up to 5-15 URLs per second on a single-core CPU. NOTE: The default visit rate is set to 1 URL per second per project. You can increase visit rate if you are sure that it will not overload your server.


  • Apache HTTP server. If you plan to use another HTTP server, please, contact us.
  • PHP 5.3+
  • PHP extensions: dom, mbstring, mysql
  • MySQL database

Using demo:

  • Click [view in separate window] link to open demo in a separate window.
  • If there is an available instance of the script, you will be redirected to the installer.
  • You can test all installation steps using the online demo, except uploading the script, editing MySQL access info, and configuring cron task. MySQL access info will be prepopulated.
  • After 20 minutes the script may be reset to the original state if there are other visitors.

Free tools:

  • The script will be available as a free online service soon. Please, check our website for more info.
  • The old version of link checker is available for free


Vote for this script:

Get the script

Purchase PHPDevel Link Checker script (Unlimited license - $150)
NOTE: unlimited license allows to check any website(s), however the script must be installed on a single domain of your choice.
Refunding policy | Valid XHTML | Valid CSS | Copyright © 2005-2012