What is deadlinkchecker?
Direct Answer: Dead Link Checker bot, operated by DLC Websites, crawls websites to identify broken links.
The Dead Link Checker bot is a web crawler designed to monitor websites for broken links, including 404 and 500 error pages. It provides reports on these broken links to help website owners and SEO professionals identify and correct issues. The bot offers both manual and automated checking services, including multi-site checking and scheduled reports.
User-Agent Identification
The following user-agent strings identify deadlinkchecker in your live traffic data:
www.deadlinkchecker.com Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36
robots.txt Rules for deadlinkchecker
Respects robots.txt: No
This bot does not commit to following robots.txt
deadlinkchecker does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.
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Crawl Behavior
Frequency:On-Demand And Scheduled
Request Pattern:Crawls Through Websites To Identify Broken Links
Official Documentation Quotes
"... I tried three different link checkers online and yours was by far the easiest to use and produced the most useful report data."
Crawl Activity Index
Relative crawl activity for deadlinkchecker over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.
View recent activity data (last 7 days)
| Date | Activity Index |
|---|---|
| Mar 28, 2026 | 10.6 |
| Mar 29, 2026 | 5.7 |
| Mar 30, 2026 | 17.6 |
| Mar 31, 2026 | 15.9 |
| Apr 1, 2026 | 21.6 |
| Apr 2, 2026 | 18.8 |
| Apr 3, 2026 | 2.0 |
Source: Cloudflare Radar
Why track deadlinkchecker traffic?
Distinguish monitoring traffic from real crawler activity. deadlinkchecker checks your site availability at regular intervals. Without proper identification, these requests can inflate your bot traffic metrics and distort crawl analysis.
Validate monitoring coverage. Track which pages deadlinkchecker checks and how frequently, so your monitoring setup matches your infrastructure requirements.
Log Verification
To verify deadlinkchecker traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by DLC Websites)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.
Undocumented Information
The following information is not officially documented for deadlinkchecker:
- crawl frequency details
- IP verification method
- JavaScript rendering capability
Official Documentation
View Official deadlinkchecker Documentation →
Information sourced from official documentation. Content generated with AI assistance.