Astro SEO monitoring
Meta drift, indexation, sitemap health, and structured-data validation.
The Astro-specific angle
Astro's @astrojs/sitemap integration silently emits the wrong canonical host if the site config is missing at build time. It's the #1 SEO footgun on Astro projects hosted on preview branches.
What we watch on Astro
- Sitemap.xml URLs pointing to a preview branch instead of prod
- Missing hreflang tags after enabling i18n routing
- Duplicate canonical tags when a layout renders <ViewTransitions /> twice
Universal seo monitoring checks
Same on every stack — these run on your Astro site out of the box:
- Title & meta description drift alerts (catches accidental deploys that strip them)
- Sitemap health — 404s inside sitemap.xml, stale lastmod, oversized files
- Robots.txt & noindex drift (the #1 way a launch tanks its own SEO)
- Structured-data validation — schema.org type coverage tracked over time
How Lemwatch handles it on Astro
We fetch and parse your sitemap on every check, flagging host drift, 404 URLs inside the sitemap, and stale lastmod dates — all invisible in Lighthouse.
More Astro monitoring guides
SEO monitoring on other stacks
Astro SEO monitoring — FAQs
We fetch and parse your sitemap on every check, flagging host drift, 404 URLs inside the sitemap, and stale lastmod dates — all invisible in Lighthouse.
Astro's @astrojs/sitemap integration silently emits the wrong canonical host if the site config is missing at build time. It's the #1 SEO footgun on Astro projects hosted on preview branches.
No. Lemwatch is fully black-box — we monitor what visitors and Googlebot see. Add your domain, checks start within 60 seconds, and no plugin, SDK, or code change is required in your Astro app.
Pro plans run 1-minute checks from multiple regions. When a regression trips a rule (e.g. p75 LCP up >20% for 3 consecutive windows, or cert expiry <7 days), the notification fires within the next check cycle — typically 60 seconds.
Yes. Add HTTP basic auth headers or a bearer token per site, and Lemwatch treats staging as an isolated site — flaky preview envs won't pollute your production status board.