Free survey
Starting surveyrobots.txt, then XML sitemaps, then a live page sample. Typical scans finish in 8–40 seconds.
Website change detection and safety
Free check of any public site — no account. Monitoring compares sitemap inventory, live page signals, and critical journeys between crawls, then shows the likely risk and where to investigate.
Any homepage. The checker is free. Keep the snapshot if you want a clear comparison after the next deploy.
1,469 public checks · 98,958 sitemap URLs found across checks · preview cap 1,200 sitemap URLs / 40 live page checks. You’ll see robots → sitemap inventory → live sample. Timing depends on origin and sitemap size; slow discovery is reported as inconclusive.
A deploy can ship noindex, hide a sitemap, or return an error on checkout while the rest of the site still looks normal. Consecutive crawl evidence makes the affected journey and likely risk visible without claiming measured traffic or revenue impact.
Keep this snapshot as a baseline. Monitoring compares later crawls, groups changes, and labels the affected journey and likely risk. Builder+ can send email alerts.
Free monitors one site daily and keeps 14 days of snapshots. Builder monitors up to five sites, keeps 90 days, and adds email alerts and CI guardrails.
After the check, choose Monitor this site to keep the baseline.
A founder who checks once a month will not pay to fail deploys. A team that already shipped a broken production site will. GitHub Action / CLI guard is on Builder+ for that buyer.
What changed in this deployment?
Sitemapper