Dead Links / URL Checker
- Dead Link - Wikipedia 77718
- Internet Archive / Wayback Machine - Wikipedia 77719
- Check My Links - Google Chrome Extension 207801
- Link Miner - Google Chrome Extension 207802
- Dr.Web Link Checker - Firefox add-on 207806
- Broken Link Checker by Balvin - Firefox add-on 207807
- Free Backlink Checker by LRT - Firefox add-on 207808
- Kevin A. Freitas - LinkChecker 77720
- LinckChecker Download - German version 77726
- Xenu's Link Sleuth by Tilman Hausherr - Wikipedia site 77727
- Xenu's Link Sleuth - website 207800
- Video: The best link checking tools and how to use a combination of add-ons 207804
- Total Validator - Multiple validations with one click 207803
- Essential SEO Toolkit - Google Chrome Extension 207805