Broken-Link Monitoring

Broken links and mixed-content warnings erode trust and hurt SEO, and they creep in silently as content and dependencies change. Broken-link monitoring crawls your site on a schedule and reports every dead link and insecure resource it finds, with the exact page each one lives on.

How it works

On each run the crawler starts from a URL you choose, follows internal links up to a configurable depth, and checks every link and resource it encounters. It records:

• Broken links — any link returning 4xx/5xx or failing to connect, with the source page and anchor text.
• Mixed content — http:// resources (scripts, images, styles) loaded on an https:// page.
• Redirect chains — links that resolve only after multiple hops.

You control crawl depth, whether external links are checked, and paths to exclude. Because a crawl is heavier than a single check, it runs on a longer cadence (typically daily, configurable).

What triggers an alert

• One or more broken internal links are found.
• Mixed-content resources are detected on secure pages.
• The count of broken links rises versus the previous crawl (so you're alerted on new breakage, not the same known backlog every day).

Each report lists the offending URL, the page it was found on, and the status returned.

Setting it up

1. Add monitor and choose Broken Links.
2. Enter the start URL (usually your homepage).
3. Set the crawl depth and choose whether to check external links.
4. Add exclude patterns for paths you don't want crawled.
5. Set the cadence and attach notifications.

Keep external-link checking off if third-party sites rate-limit your crawl — it can produce noisy, transient failures outside your control.

Related

• Lighthouse · Performance · Uptime
• Notifications
• Marketing: Broken-link monitoring feature