Dental practices with a broken website
230 US practices whose website is verifiably broken — 144 with a dead domain, 86 showing every visitor a browser security warning. Built for people who sell websites to dentists.
Why these are warmer than a cold list
A practice with a dead domain or a certificate warning has a problem that is visible to its own patients today, costs it new-patient calls, and that it very often does not know about. That is a different opening line from a cold pitch about redesigns.
The certificate faults are the more interesting half. A dead domain usually means the practice closed or rebranded. A broken certificate means it is still operating, still paying for hosting, and every prospective patient who clicks its Google result gets a red interstitial that looks like a scam warning.
How every row is checked
DNS, twice
Every domain is looked up against two independent resolvers — Cloudflare and Google — so a local resolver hiccup can't create a false positive.
A plain HTTP request
Confirms whether anything answers at all.
A real browser
Each survivor is loaded in headless Chrome. Only faults Chrome itself raises make the list.
Anything that loads fine, or fails ambiguously, is dropped before you see it — 27 rows were removed at that last step across two compilation passes. `curl` and `openssl` disagree with Chrome often enough that the browser check is the only one that counts: openssl will happily call a certificate valid while Chrome refuses the site outright.
Honest limits
- It is a lead list, not an introduction. I do not contact the practices, and nothing here is a promise that any of them will buy from you.
- It decays. Practices fix things — one row was dropped from a sample on the morning it was emailed. Re-check before you pitch. That is the real argument for the monthly version over the one-off.
- Rows come from public business listings and public DNS and HTTP responses. Nothing was submitted to any form and no private data is included.
Or have your own territory scanned
If you already work a patch, that version is usually the better buy. Send the prospect list you have, or just name a metro, and the same checks run against your targets rather than mine — ishubham2101@gmail.com.