What does Lemwatch monitor?

Lemwatch runs 20+ automated checks per site: uptime, response time, SSL/TLS expiry, domain expiry, DNS changes, sitemap health, broken links, content changes, SEO audits, mobile usability, security headers, and more.

Yes. The free tier monitors up to 5 sites. Pro is $19/month for 50 sites and Agency is $59/month for 100 sites, both with full feature access.

How is Lemwatch different from UptimeRobot or Pingdom?

Lemwatch bundles uptime, change detection, SEO audits, security scans, and a public API in one platform — features competitors charge separately for. It also includes team workspaces, white-labelled status pages, and a webhook system out of the box.

Does Lemwatch send alerts?

Yes. Lemwatch supports email, browser push, webhooks, and per-site notification routing so the right person hears about the right incident.

Is there a public API?

Yes. Pro and Agency plans get a public REST API with webhooks for sites, checks, incidents, and reports.

Cloudflare Error 523: Origin is unreachable

Cloudflare could not route to the origin at all. Typically the DNS record points at an invalid or unroutable IP, or the origin's network route has been withdrawn.

Short answer

Cloudflare could not route to the origin at all. Typically the DNS record points at an invalid or unroutable IP, or the origin's network route has been withdrawn.

What Cloudflare Error 523 means

Where 522 is a timeout to a reachable address, 523 means the address itself is unroutable. The problem sits at the DNS or network layer, not the web server.

Causes and fixes, most likely first

The origin DNS record points at a private, reserved, or decommissioned IP. Correct the A record to the server's current public address.
The origin's hosting provider withdrew the route (suspension, decommission). Confirm the server is still provisioned and reachable from an independent network.

How to stop it happening again

Monitor DNS record values so a record pointing at a dead address is caught before the edge starts failing.

Check your own domain

The DNS lookup shows exactly which address the record resolves to — which is where an unroutable target becomes obvious.

Frequently asked questions

Does 523 mean my server is off?

Not necessarily. It means the address Cloudflare was told to use cannot be reached. The server may be fine at a different address.

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