Check up to 25 website addresses at once
Paste up to 25 URLs, one per line. Each is requested from our server: the HTTP status, where its redirects end, the response time, whether the HTTPS certificate is valid, and up, down, redirects elsewhere or error. Free, no account.
How each address is checked
- The address is parsed: http and https only, ports 80 and 443 only, no usernames, no IP addresses and no internal names such as localhost. Anything else is an error before any request.
- The name is resolved and every address it points to must be public; private, loopback, link-local (cloud metadata included), multicast and reserved addresses are refused, and the connection goes to the address that was checked.
- One GET is sent, reading at most 16 KB. Up to 4 redirects are followed by hand and each hop is checked the same way.
- With no http:// or https:// in front, https is tried first and http only if https gave no response at all. HTTPS is Valid when the certificate passed the standard checks (trusted issuer, right name, in date) and Expired or Invalid when the handshake failed.
- Up to 8 addresses are checked at a time; the whole list shares one 20-second budget and one address gets at most 8 seconds of it.
What the results mean
- Up: answered with a status below 400 on the same site (www and the bare domain count as one).
- Redirects elsewhere: answered, but only after sending us to a different site. A business site that redirects to a directory, a builder's parked page or another company is worth a look.
- Down: no HTTP response (no DNS record, refused, timed out, failed handshake on every try) or a 5xx server error.
- Error: a 4xx answer, an address we refuse to request, or too many redirects.
Limits: 5 lists a minute and 150 addresses an hour per connection. One address with more detail: website down checker.
Businesses with websites that are down
Site-down rate: local businesses in the US
Across 67Leads data, 6% of the websites listed by local businesses in the US did not load when we last checked (7,827 of 122,822).
7,827 local businesses in the US have a site that is down, see them (masked)
Sites our crawler has not visited yet count as not down, so this is a floor.
Site-down rates by trade
Tree service companies: 9% downPlumbers: 6% downRoofing contractors: 7% downElectricians: 9% downHVAC contractors: 6% downMed spas: 5% downCleaning companies: 6% downDentists: 2% downInsulation contractors: 7% downLaw firms: 2% downPest control companies: 4% downChiropractors: 4% down
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Questions
Paste up to 25 addresses above, one per line, and press Check all. Each gets its HTTP status, where its redirects end, the response time, whether HTTPS is valid, and up, down, redirects elsewhere or error.
A 403 usually means bot protection refused our automated request; the server is running. A site can also block our server's network while serving yours.
It reports whether the HTTPS handshake passed. An expired certificate fails the handshake and is shown as Expired with the reason; the exact expiry date is not shown.
No. Each address gets one live request; the list and the results are not saved, cached or indexed.
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