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.

Hreflang tag check

Validates hreflang tags across your language variants — return-tag mismatches are the #1 cause of Google demoting international sites.

Quick answer

Lemwatch builds a cluster of every hreflang-tagged URL and confirms each URL has return tags pointing back to all the others (Google's requirement).

What it checks

Valid ISO language + region codes
Return tags are reciprocal
x-default present
All URLs in the cluster resolve to 200
No language variant self-canonicalises to another

Where to find it in Lemwatch

Site details → SEO → International.

How to fix

Ensure every alternate URL includes hreflang links to every other alternate — including itself.
Add hreflang="x-default" for your fallback URL.
Fix any 404s in the cluster.
Re-crawl.

FAQ

Can I use hreflang in the sitemap instead?

Yes — Lemwatch checks both HTML tags and sitemap declarations.

Do canonicals fight hreflang?

Yes — never canonicalise a language variant to another language.

Lemwatch — All-in-One Website MonitoringUptime, performance, SEO, security, and change detection in one platform. Free tier available.Pricing · Features · Sign Up