Ahrefs has a broken-link tool inside Site Explorer and another inside Site Audit. Both pull from the Ahrefs index (a last-crawl snapshot, not a live check). This page covers exactly what each does, what it costs in 2026, where the index-based model stops fitting, and which alternatives are worth running alongside or instead.
The name covers two separate features inside Ahrefs:
There is also a free public-facing version of the broken-link checker, which accepts a single domain and returns a sample of broken backlinks. It is rate-limited and meant as a top-of-funnel demo, not a working tool.
The Ahrefs Broken Link Checker is not sold separately. It comes bundled with any Ahrefs subscription:
| Ahrefs plan | Monthly | Annual | Best fit |
|---|---|---|---|
| Lite | $129 | $108/mo (billed annually) | Solo SEO, one project |
| Standard | $249 | $208/mo | Small in-house team |
| Advanced | $449 | $374/mo | Agency with 5β10 active projects |
| Enterprise | $1,499 | $1,249/mo | Larger agency, white-label needs, API access |
A few cost details that matter when comparing:
Ahrefs' broken-link checker is built around three core assumptions: one site per project, audits on Ahrefs' cadence, reports consumed inside Ahrefs. Those work fine for solo SEOs and in-house teams. They break down in four specific scenarios:
None of these replace Ahrefs for backlink discovery, Domain Rating, or keyword research. They cover the gaps above: live URL validation, arbitrary list handling, multi-client workflows.
Cloud-based live-check tool. Paste or upload up to 75,000 URLs per run, get HTTP status codes, redirect chains, and soft-404 detection in real time. Multi-client workspaces for agencies, white-label PDF export, optional Slack alerts when scheduled checks find new breaks. Free for the first 300 URLs, no signup. Paid plans from $9/month for 5,000 URLs and a recurring schedule.
Pairs with Ahrefs. The common pattern: export the backlink list from Ahrefs, drop it into a Bulk URL Checker workspace, re-check on a daily or weekly cadence. Ahrefs handles discovery; we handle live status. Full workflow detail on the URL Checker for SEO Agencies page and Backlink Audit Tool.
Desktop crawler ($259/year). For a site you own, Screaming Frog will find every broken internal and outbound link in one comprehensive pass. Free up to 500 URLs; paid removes the cap. Best in class for single-site audit depth.
Trade-offs: runs on your local machine (consumes CPU, memory, bandwidth for hours on big sites). No proxy rotation, so external link checks hit rate limits and return false 429/403s. No multi-client workspace model. Limited scheduling.
Web-based, free-to-cheap tools that crawl a small number of URLs per check. Useful for one-off spot-checks of a single page or short list. Not built for ongoing monitoring or large lists. Most public checkers either timeout above 1,000 URLs or rate-limit themselves so aggressively that a 5,000-URL list takes hours.
For everything outside URL-checking, Ahrefs wins on every axis. The comparison below is narrow on purpose: it covers only the broken-link-checking + URL-validation overlap.
| Bulk URL Checker | Ahrefs Broken Link Checker | |
|---|---|---|
| Best for | Recurring URL validation, multi-client link health | Backlink discovery + integrated site audit |
| Status check freshness | Real-time on every run | Ahrefs index, last crawl |
| Arbitrary URL list import | Yes (paste, CSV, or API) | Limited to project sites |
| Multi-client workspaces | Isolated workspace per client | Per-project, seat costs scale |
| White-label PDF | Yes, your branding | Limited templates, Ahrefs-branded UI |
| Slack alerts on broken links | Yes, per workspace | Email notifications only |
| Anti-block layer | Rotating residential proxies | Built-in to crawler |
| Backlink discovery | Not offered | Industry-leading |
| Domain Rating, SERP, keyword data | Not offered | Yes, comprehensive |
| Free tier | 300 URLs, no signup | Limited public checker, sample data only |
| Entry pricing | $9/month (5,000 URLs, 1 schedule) | $129/month (Lite plan) |
The most common pattern we see from SEO teams that have evaluated both: keep Ahrefs as the strategy/research tool, add Bulk URL Checker as the recurring URL-validation tool. They don't overlap meaningfully.
The workflow most teams settle on: monthly Ahrefs export β drop into a Bulk URL Checker workspace β weekly or daily recurring check β Slack alert fires when a tracked backlink goes 404 β white-label PDF lands in the inbox at end of cycle, ready to forward.
A feature inside Ahrefs that surfaces broken links pointing to a target domain or sitting inside a tracked site. It pulls from Ahrefs' backlink index (last-crawl snapshot, not real-time) and is most commonly used for broken-link-building outreach and quarterly site-health audits.
It is not sold separately. Access requires an Ahrefs subscription, which starts at $129/month for the Lite plan and goes to $449/month for Advanced and $1,499/month for Enterprise. There is also a free public-facing version with limited queries, useful for one-off lookups but not for ongoing audits.
It reflects the last time Ahrefs' crawler indexed the target. For high-authority pages this can be days; for the long tail it can be weeks. If you need to know a URL's status right now (for a client report, after a migration, ahead of an outreach push), you need a live-check tool, not an index lookup.
No. The two solve different problems. Keep Ahrefs for backlink discovery, competitor research, Domain Rating, keyword research, and quarterly site audits. Add Bulk URL Checker for recurring URL validation and multi-client link-health monitoring. The common pattern is running both.
Yes. Export the backlink list from Ahrefs as CSV, drop it into the workspace. The CSV parser auto-detects which column contains the URLs, so no reformatting is required. The same flow works for Semrush exports, Screaming Frog reports, and Google Search Console URL exports.
Site Audit is a quarterly comprehensive sweep of a single site. It is the right tool for a deep one-time audit. It is not the right tool for weekly broken-link monitoring across many URL inventories, where the recurring cost and per-project setup add up. They coexist well: Site Audit quarterly, a live-check tool weekly.
For multi-client recurring audits, prioritize tools that support isolated workspaces per client, real-time status checks, white-label PDF export, and CSV import of arbitrary URL lists. Bulk URL Checker covers all four. Screaming Frog covers the audit depth but runs locally and has no multi-client workspace model. Sitebulb is similar to Screaming Frog. Dr Link Check is the closest direct competitor for bulk URL validation.
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