Advanced Features

What is Lemwatch Pulse?

Pulse is a free public health scanner — anyone can drop in a URL and get a graded uptime, performance, security, and SEO snapshot in seconds.

Updated 2026-07-10

1 min read

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Quick answer#

Pulse is a no-signup site health check. Enter a URL, get an A–F grade across uptime, performance, security headers, and SEO fundamentals in about 20 seconds.

What it checks#

Uptime probe + response time from one region

Core Web Vitals proxy (TTFB, HTML size)

Security headers (HSTS, CSP, X-Frame, cookies)

SEO fundamentals (title, meta, canonical, robots)

SSL grade and expiry

Where to find it in Lemwatch#

/pulse — public, no login required.

How to use it#

Go to /pulse and paste a URL.

Wait ~20 seconds for the scan.

Review the graded snapshot.

Claim the site to keep monitoring it — see claim & share.

FAQ#

Is Pulse really free?#

Yes. Rate-limited to prevent abuse.

Can I scan sites I don't own?#

Yes — Pulse only fetches public URLs.

Pulse scan anatomy

Claim a Pulse scan

Pulse review queue and privacy

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Autopilot safety rails

How to read your Pulse scan report

The Pulse report grades four pillars (uptime, performance, security, SEO), each with drill-downs. Grades are A–F using the same weights as the paid product.

How to claim and share a Pulse scan

Claim a Pulse scan to convert it into a monitored site in your Lemwatch dashboard. Share the public scan URL with a client to prove a problem exists.

Pulse review queue, PII, and expected-behavior whitelist

Pulse scans are public, but visitor email, IP hash, and referrer are never exposed. A review queue catches unexpected findings before they show as failures.

Approving and dismissing visual changes

Accept an expected change as the new baseline, or dismiss noise so it stops re-alerting.

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