# Build a Broken Link Monitor That Auto-Drafts Replacement Content > Broken links are a silent SEO drain. Here is how to build a Claude agent that monitors your site for broken internal and external links, identifies the traffic impact, and auto-drafts replacement content. - **URL**: https://www.maximalstudio.in/blog/broken-link-monitor-agent --- Maximal StudioApproachResourcesBlogToolsGet In Touch<- Back to BlogBuild a Broken Link Monitor That Auto-Drafts Replacement ContentJun 29, 2026-Shubham RasalBroken links are a silent SEO drain. Here is how to build a Claude agent that monitors your site for broken internal and external links, identifies the traffic impact, and auto-drafts replacement content.Broken links are boring until you realize they're quietly draining your rankings. A page that links to a 404 passes no authority to the destination, confuses users, and signals to crawlers that you're not maintaining your site. Most teams fix broken links reactively -- when someone complains, or when an audit runs quarterly. This post shows how to build an agent that monitors your site continuously, finds broken links, calculates the traffic impact of each, and drafts replacement content for the ones worth fixing. The whole thing runs on a schedule with no manual trigger. What the Agent Does The agent runs weekly (or on a schedule you choose) and: Crawls your sitemap to get the full URL list Checks every internal and external link on each page for 404s For broken external links, finds an alternative source or suggests removal For broken internal links caused by deleted pages, calculates the traffic that page was receiving via GSC and ranks fixes by impact For high-traffic broken pages, auto-drafts replacement content based on what the page used to rank for The output is a prioritized fix list and a folder of draft posts. The Crawl Step Start with your sitemap to get all live URLs: import requests from xml.etree import ElementTree def get_sitemap_urls(sitemap_url): r = requests.get(sitemap_url) root = ElementTree.fromstring(r.content) ns = {'sm': 'http://www.sitemaps.org/schemas/sitemap/0.9'} return [loc.text for loc in root.findall('.//sm:loc', ns)] Then for each URL, extract all links and check their status codes. Anything returning 404, 410, or 5xx is a broken link. Ranking Fixes by Impact Not all broken links matter equally. A 404 on a page that gets 3 visits a month is noise. A 404 on a page that was getting 2,000 monthly clicks is a real loss. Cross-reference broken pages against your GSC data to get impression and click counts for each. Sort the fix list by that number descending -- the top 5 are the ones worth acting on immediately. Claude prompt: "I have a list of 404 pages on my site with their historic GSC traffic. Rank them by impact (clicks lost) and for each one above 100 clicks/month: - Identify what the page ranked for based on its URL and GSC query data - Write a 600-word draft blog post targeting the top keyword from that page - Suggest 3 internal pages to link to from the new post Output each draft as a markdown file." Handling External Link Rot For external links pointing to dead pages, the fix is simpler but still time-consuming manually. The agent can: Search for an alternative URL covering the same content (via DuckDuckGo API or DataForSEO) Check if the Wayback Machine has an archived version Flag links where no good replacement exists (and suggest removing them) For most sites, 80% of external link rot can be auto-resolved this way. Running It on a Schedule Wire the agent to a weekly cron: # Every Sunday at 6am 0 6 * * 0 python3 /scripts/broken-link-agent.py --site https://www.yoursite.com --gsc-property sc-domain:yoursite.com Outputs go to /reports/broken-links-YYYY-MM-DD.md and /drafts/. Review the report Monday morning, publish the drafts that make sense, and your site stays clean without anyone manually auditing it. The ROI A site with 200+ pages typically has 10-30 broken links at any given time. If even 3 of those pages were previously getting meaningful traffic, recovering them is worth more than a month of new content creation. The agent pays for itself the first time it catches a high-traffic 404 before your next quarterly audit. Want This Running on Your Site? We build and maintain SEO automation agents -- crawlers, GSC integrations, and content recovery pipelines. 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