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Oh Dear vs Site24x7: catalog facts
Oh Dear	Site24x7
Paid Paid plans with a 10-day free trial that needs no payment details.	Freemium Free and paid monitoring plans, with a 30-day free trial.
Web	Web
Crawls whole sites for broken links, not just the homepage Uptime, SSL, DNS and cron checks in one tool	Covers websites, servers, networks, applications and cloud in one service Alerts through several notification channels
No permanent free plan Hosted only	Hosted service only; monitoring data lives with the vendor Broad enterprise feature set can be more than a small site needs
Hosted service	Hosted service
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.