SignalWatch vs dislike404.com

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

SignalWatch compared with dislike404.com
Detail	SignalWatch	dislike404.com
What it does	Know when a public page changes	Free automated broken link and 404 error monitoring for your website with email alerts
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	DE
Pricing model	Freemium	Free
Pricing	Free: $0 (3 URL monitors, checked every 15 minutes, 45-day history). Pro: $12/month or $79/year (50 URL monitors, checked every 5 minutes). Business: $29/month or $199/year (500 URL monitors, checked every 2 minutes). All plans include email, Slack, Discord, webhooks, and REST API.	Completely free. Unverified accounts: up to 200 internal pages and 1,000 total requests per scan. Verified accounts: up to 50,000 internal pages and 500,000 total requests per scan. Higher limits available upon request.
Key features	Text change detection with unified diffs Downtime and recovery alerts TLS certificate expiry monitoring CSS selector support for page sections Ignore regex and minimum-change thresholds Email, Slack, and Discord alerts Signed JSON webhooks REST API with OpenAPI documentation 45-day alert history Test alerts before deployment	Automated 404 error scanning Email alerts with flexible notification settings Adjustable scan intervals from daily to monthly Manual on-demand scanning URL blacklisting and filtering Redirect chain validation CSV export of scan results WordPress plugin for dashboard integration Multiple website monitoring on single account GDPR-compliant server in Germany
What makes it different	No JavaScript rendering, only fetches visible text Free plan includes webhooks and API Flexible alert destinations: email, Slack, Discord, or custom webhooks Individual URL monitoring without site crawling Scheduled checks, not instant: free every 15 min, Pro every 5, Business every 2	Completely free with no paywalls, trial expiration, or hidden costs Proactive monitoring that alerts before Google or visitors notice issues Respects server resources with adjustable crawl speed and robots.txt compliance
Community votes	0	0
DR (Domain Rating by Ahrefs)	9 no change since last check	57 no change since last check
Trust Flow (Majestic)	6	17
Citation Flow (Majestic)	24	45
Referring domains (Majestic)	13	40

5 details filled in for both companies.

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