Upload a CSV. We check every URL in the cloud. You get an email when your report is ready, with status codes, redirects, and response times.
Free to run · first 300 results free · no credit card
Or hit it from your own code: REST API, Python SDK, Node SDK, and a hosted MCP server for Claude, ChatGPT, and Cursor. Same backend, same credits, one credit unlocks one result.
Drag your CSV here or browse files
Up to 100,000 URLs per file
0 URLs per batch100% batch completionZero babysitting
We'll check them on the next screen. No sign-up to start.
Trusted for the work that matters
164.8k
URLs checked in the last 30 days
32.5k
Broken links surfaced and fixed
100k
URLs per single job, no slowdown
1M+
URLs stress tested through the system
Live counts pulled from our checker every hour.
Three steps. No installation. No babysitting.
Export URLs from your CMS, spreadsheet, or database. Upload up to 100,000 URLs in a single batch.
Our servers check every URL for status codes, redirects, and response times. Proxy rotation handles rate limits automatically.
Receive an email when done. View status codes, redirect chains, and response times. Filter results and export to CSV or JSON.
Set a URL list, pick daily or weekly, walk away. We re-check on schedule, compute the diff vs the previous run, and only ping you when something actually flips from healthy to broken, no noise, no flap alerts.
Whichever angle you came from (agency client audits, backlink reclamation, large-list validation, or a one-time broken-link sweep), there's a focused landing page below with the workflow spelled out.
Find every broken link in your list. Hard 404, soft 404, and 410 distinguished separately.
See the workflow →Set a URL list and a cadence. We re-check on schedule and only alert you when something actually breaks.
See the workflow →Upload a CSV, walk away, come back to a finished report with status codes, redirects, and response times.
See the workflow →10,000 to 100,000 URLs per run on cloud workers. Domain-aware throttling so concentrated lists still finish.
See the workflow →Browser-based, no install. The full feature set of a desktop URL checker, without the desktop.
See the workflow →Monthly link audits across every client at once. Multi-client workspaces and white-label reports.
See the workflow →One paste-URL install. OAuth signs you in. Claude or ChatGPT can now check, audit, and validate links as a native tool, no glue code required.
Or call the REST API →No glue code. Paste one URL into Claude or ChatGPT's app config. OAuth signs you in. Done.
Same credits as the web UI. One credit per URL checked. No API tier, no minimums, no separate plan.
1,400+ rotating proxies, retry logic, soft-404 detection. Your agent doesn't worry about any of that.
Pick your client. Paste the URL. OAuth handles the rest.
https://mcp.bulkurlchecker.com/mcpsubmit_urls, get_job_status, get_job_results, and get_usage as native tools.{
"mcpServers": {
"url-checker": {
"type": "http",
"url": "https://mcp.bulkurlchecker.com/mcp"
}
}
}Desktop tools and scripts hit rate limits, get IP-blocked, and quit midway. Our cloud checker handles it all automatically.
See how Bulk URL Checker stacks up against the alternatives
| Feature | Bulk URL Checker Best | Screaming Frog | Free Tools |
|---|---|---|---|
| Price | From $9.99 | £149/year | Free |
| Max URLs per batch | 100,000 | ~500 (crawl) | 100–500 |
| Cloud-based | ✓ | ✗ | ✓ |
| No installation | ✓ | ✗ | ✓ |
| Auto-handles rate limits | Proxy rotation + retry | Manual throttle | ✗ |
| Runs unattended | ✓ | ✗ | ✗ |
| Email notifications | ✓ | ✗ | Varies |
| Dashboard & history | ✓ | ✗ | ✗ |
| Guaranteed completion | ✓ | ✗ | ✗ |
| Soft 404 detection | ✓ | ✓ | ✗ |
| Redirect chain tracking | ✓ | ✓ | Varies |
| CSV / JSON export | ✓ | ✓ | Varies |
| REST API | Included from $9.99 | ✗ | ✗ |
| Claude / ChatGPT integration (MCP) | Paste-URL install | ✗ | ✗ |
| OpenAPI spec | ✓ | ✗ | ✗ |
| Dynamic OAuth for agents | RFC 7591 + PKCE | ✗ | ✗ |
Run up to 100,000 URLs on any account without paying, and see how many are broken. Credits unlock which ones: 1 credit reveals 1 result, and your first 300 are free. A plan gives you a monthly pool of results at a better rate than one-off packs, plus scheduled re-checks. Cancel anytime.
Try it out
For solo operators
For regular monitoring
For agencies & teams
Scheduled checks, daily re-runs, and email, Slack and webhook alerts are included on every plan and on the free tier. The plans differ only in how many results you can unlock each month, and unused credits roll over rather than resetting.
We're building the agency layer, multi-client workspaces, white-label PDF reports, Slack alerts on broken backlinks, and onboarding founding partners now. Lock in the price for life.
Everything you need to know about our bulk URL checker
A bulk URL checker validates thousands of URLs simultaneously. Upload a CSV file with up to 100,000 URLs, and we check status codes, redirects, response times, and more, all in the cloud, with no software to install.
Running the check is free. Credits unlock the results: 1 credit reveals 1 URL result, and every new account gets 300 free. Buy a credit package when you need more, with no subscription and no recurring charges, or take a monthly plan for a better rate per result. Unused credits roll over. No credit card required to start.
Our system uses intelligent proxy rotation and automatic retry logic to handle common rate limit scenarios. While we can't guarantee all rate limits can be bypassed, our system prioritizes quality and domain respect, ensuring reliable results for the checks that complete.
For each URL: HTTP status code (200, 404, etc.), full redirect chain, response time in milliseconds, final destination URL, and timestamps. Export everything to CSV or JSON. The dashboard lets you filter by status code and search specific URLs.
Screaming Frog is a desktop crawler. We are a cloud-based bulk checker, no installation, no babysitting. Key differences: runs unattended with email notifications, built-in proxy rotation for rate limits, dashboard analytics, monthly subscriptions from $9 (or $9.99 for 10K credits one-off) vs £149/year, and up to 100,000 URLs per batch.
Yes, on every plan and on the free tier. Scheduled checks are not a paid feature: pick a list and a cadence and we re-check it and email you only when something changed, with Slack and webhook alerts available too. Running a scheduled check is free, the same as running one by hand, so watching a list weekly costs the same as watching it once. Daily is the fastest cadence, deliberately, so we never look like aggressive scrapers to the sites you are checking.
Free to run, with the first 300 results unlocked free on every new account. Subscriptions (recurring monthly URL pool): Starter $9/mo (15K), Pro $29/mo (50K), Agency $99/mo (200K). One-off credit packs are still available after sign-in for occasional top-ups: 10K ($9.99), 30K ($23.99), 75K ($49.99). Subscriptions cost less per URL at every tier.
Guides on URL checking, link audits, and SEO best practices
Five failure modes that kill a homegrown httpx + asyncio URL checker at scale, with code and fixes.
Read Article →Install the SDK, get a key, check 50,000 URLs from your terminal. Plus CSV, sitemap, and CI/CD recipes.
Read Article →Compare the best free and paid tools for checking thousands of URLs for broken links and redirects.
Read Article →Running the check is free; the first 300 results unlock free. No credit card, no installation, no babysitting. Buy more credits when you need them.
No credit card required, free to run, 300 results unlocked free
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