A direction, not a difference
Indexable → noindex is critical. Noindex → indexable is silence. 200 → 404 wakes you; 404 → 200 does not. A crawler reports every change; this reports the ones that cost you something.
Find out from us, not from the traffic graph
A release adds one meta tag and a page that brought you visitors for two years stops being indexable. Nothing errors, nothing goes down, and the drop shows up weeks later. Guard watches the pages you name and tells you the day it happens.
Included from the free plan. No card required.
Eleven things per page
HTTP status, indexability, canonical, robots directives, title, meta description, H1, structured data, hreflang, internal links and content volume — each compared against the state you approved.
Next to the deploy it followed
Mark your releases through the API and a regression is shown beside the deploy within six hours of it. That is a coincidence worth checking first — we put them side by side and never call it proof.
How it works
Name the pages that matter
Not the whole site — the pages that bring traffic or money. A watch list you can read is one you will act on.
The first crawl becomes the baseline
Every later check compares against that approved state — not against yesterday. Comparing with yesterday lets a slow drift pass clean at every single step and arrive somewhere you never agreed to.
You get told, with the evidence
Email or Telegram, only for new and returned regressions. Each carries the exact before → after values, so you can judge it without opening anything.
Move the baseline when the change was intended
Rewrote the titles on purpose? Accept the new state and it stops being a finding. The baseline only ever moves because a person said so.
What it does not do
- It does not prove a deploy caused a regression. It shows you which deploy came first and leaves the judgement to you.
- It does not rank you or predict traffic. It reports what changed on your own pages.
- It does not fire on ripple: a few links or a few percent of text moving is normal page life, not an incident.