Visual break detection

Catch broken pages before your users do

HTTP can stay 200 while checkout buttons disappear or hero images break. Compare fresh full-page screenshots to your last known good version and get alerted on real visual changes.

  • Detect layout regressions status codes miss
  • See current, previous, and diff images in every alert
  • Optional AI summary of what changed on screen

Takes ~60 seconds to set up

We’ll check your site and continue signup on the next page.

Visual break detection is on Pro and Business plans.

Side-by-side screenshot comparison showing visual changes detected between two versions of a page

Uptime checks aren’t enough for what users see

A green HTTP check doesn’t mean the page looks right. Deploys, CDN issues, A/B tests, and third-party scripts can break layouts while the server still returns 200.

  • Missing CTAs and broken checkout flows
  • Wrong fonts, images, or hero sections after a deploy
  • Cookie banners and ads that hide critical UI

How visual break detection works

One monitor type, focused on what visitors actually see in the browser.

  1. 01

    Add visual break detection
    Paste a public URL—homepage, pricing, or checkout. Set how often to capture (minimum 30 minutes on paid plans).
  2. 02

    We capture a full-page PNG
    Each scheduled check loads the page in a real browser viewport and stores a baseline screenshot.
  3. 03

    Compare to the previous run
    Pixel diff scoring flags meaningful visual changes. You control sensitivity with diff and pixel thresholds.
  4. 04

    Alert with context
    When something changes, see current, previous, and diff images—plus an optional AI-written summary in Slack, email, or SMS.

Built for pages that must look right

Ideal for marketing sites, client deliverables, and revenue-critical flows.

  • Marketing & landing pages
    Catch hero swaps, missing logos, and broken sections after CMS or deploy changes.
  • Checkout & signup flows
    Know when payment buttons, forms, or trust badges disappear—even if the API is healthy.
  • Agency client sites
    Prove you noticed visual issues before the client screenshots Slack—one dashboard per URL.
  • Post-deploy smoke checks
    Pair visual break detection with website outage alerts so you see both server health and what users see.

What you get on every visual change

Everything you need to triage without opening the site blind.

  • Side-by-side diff view
    Current, previous, and highlighted diff images in the monitor timeline—no guessing from logs alone.
  • Tunable sensitivity
    Adjust diff and pixel thresholds so minor ad rotations don’t page you while real layout breaks do.
  • AI change summary
    Optional one-line description of what moved on screen—useful in Slack threads and client handover.
  • Same alert routing as uptime
    Email on every plan; Slack and webhooks on Pro; SMS on Business—same escalation rules you already use.
Pro & Business

Included on Pro and Business

Start on Free with ten monitors, then upgrade when you need visual break detection, 1-minute checks, and Slack. Visual break detection monitors require at least a 30-minute interval.

See pricing on the home page

Visual break detection FAQ

  • Does screenshot monitoring replace HTTP uptime checks?
    No—they complement each other. Keep website outage alerts for availability; add visual break detection for what the page looks like in a browser.
  • Which plans include visual break detection?
    Pro and Business. Free includes uptime, SSL, DNS, and other monitor types—upgrade when you need visual regression detection.
  • How often can you capture screenshots?
    At most every 30 minutes per monitor (plan limits still apply). Full-page captures are heavier than lightweight HTTP pings.
  • What if a cookie banner or ad changes every run?
    Tune pixel and diff thresholds, and read the optional AI summary—it often flags transient noise like banners and rotating ads.
  • Can I monitor pages behind login?
    Visual break detection works best on public URLs today. Use form & conversion checks or website outage alerts for authenticated APIs and health endpoints.

Stop shipping silent visual regressions

Add one URL, confirm your email, and start with ten free monitors. Upgrade to Pro when you need visual break detection and faster checks.