Bulk Website Checkers
Paste a list of URLs and audit them all in one go. SSL, security headers, DNS, meta tags, page speed, mobile-friendliness, uptime and more — with one-click CSV export.
Why bulk checks save hours
If you manage more than a handful of websites — as an agency, freelancer, in-house ops team, or ecommerce operator with multiple storefronts — running single-URL checks one at a time is the slowest way to do site audits. A 20-site portfolio takes 20 separate page loads, 20 manual copy-pastes into a report, and 20 chances to forget a URL. Bulk tools collapse that into a single paste-and-go.
Every bulk tool below hits the same edge function as its single-URL sibling. SSL grades come from the same live TLS handshake. Security headers are read from the same live HTTP response. Page speed scores come from the same Lighthouse run. The results are identical — bulk just gives you them in a table with a CSV export, instead of one card per page load.
These tools are intentionally rate-limited (25 URLs per run, 3 parallel requests) to keep the free service fair and to be a good neighbour to the sites being checked. For continuous, fleet-wide monitoring with alerting, status pages, and historical trends, LemWatch's paid plans run these checks automatically every few minutes and alert you the moment something breaks.
All bulk tools
Bulk SSL Checker
Check SSL certificates on up to 25 domains at once. Validity, expiry, issuer, TLS version and grade — exportable to CSV.
Use bulk toolBulk Headers
Scan HTTP security headers across up to 25 URLs in one batch. HSTS, CSP, X-Frame-Options, Permissions-Policy — graded A+ to F.
Use bulk toolBulk DNS Lookup
Resolve DNS records for up to 25 domains at once. A, AAAA, MX, NS, TXT, CNAME — exported as CSV for diff and audit.
Use bulk toolBulk Meta Tags
Audit titles, meta descriptions, Open Graph and Twitter cards across up to 25 URLs in one paste. Spot duplicates and missing tags fast.
Use bulk toolBulk Mobile Test
Check mobile-friendliness across up to 25 URLs at once. Viewport, tap targets, text size, content fit — pass/fail per URL.
Use bulk toolBulk PageSpeed
Run PageSpeed (Lighthouse) on up to 25 URLs in one go. Performance score, LCP, CLS, and TBT per URL — exportable.
Use bulk toolBulk Uptime
Check whether up to 25 sites are currently online. Status code, response time, and a per-URL up/down verdict.
Use bulk toolBulk Mixed Content
Find HTTP resources loaded on HTTPS pages across up to 25 URLs. One paste to catch insecure images, scripts, and iframes at scale.
Use bulk toolBroken Link Crawler
Crawl a public site to find failed internal links and report the URLs that need investigation.
Use bulk toolBulk Malware
Cross-check up to 25 URLs against malware and phishing blocklists in one paste. Flag any site flagged by major safe-browsing sources.
Use bulk toolBulk tools FAQ
- How many URLs can I check at once?
- Up to 25 URLs per run. We cap the batch size so every check completes inside a reasonable time window and to keep our free service fair for everyone. For larger fleets, create a free LemWatch account and add sites to continuous monitoring.
- Are bulk results different from the single-URL tools?
- No. Each row in a bulk run hits the exact same edge function as the single-URL version of that tool — same data, same accuracy. Bulk just runs them in parallel and gives you one summary per row plus a CSV export.
- Can I export the results?
- Yes. Every bulk run has a one-click CSV export with the URL, status, and a short summary per row, so you can drop the results into a client report, spreadsheet, or ticket.
- Do bulk runs need an account?
- No signup required. Paste your list, run the check, export the CSV. We do not log the URLs you check in our analytics — see our privacy policy for details.
- Why is one of my URLs failing?
- The most common causes are: the URL is unreachable, the site blocks bots, the certificate is invalid, or the page returned a non-200 status. Click the URL to re-run it through the single-tool version for a full diagnostic.