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Oh Dear vs Sitechecker Website Monitoring: catalog facts
Oh Dear	Sitechecker Website Monitoring
Paid Paid plans with a 10-day free trial that needs no payment details.	Paid Paid platform with a free way to start and some free SEO tools.
Web	Web, Browser extension
Crawls whole sites for broken links, not just the homepage Uptime, SSL, DNS and cron checks in one tool	Alerts on changes to robots.txt, sitemaps and meta tags Detects broken links and redirects
No permanent free plan Hosted only	Focused on SEO rather than uptime Full monitoring requires a paid plan
Hosted service	Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.