We couldn't read an SSL certificate for it when we last analysed it.
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We couldn't read an SSL certificate on port 443 when we last analysed proofofconcept.ltd. Refresh the analysis to check again.
10 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| proofofconcept.help | Other extension | 18 Sept 2026 | Checking… | Report → |
| proofofconcept.design | Other extension | 31 Aug 2026 | Checking… | Report → |
| proofofconcept.work | Other extension | 31 Aug 2026 | Checking… | Report → |
| proofofconcept.fun | Other extension | 26 Aug 2026 | Checking… | Report → |
| proofofconcept.ventures | Other extension | 26 Aug 2026 | Checking… | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is proofofconcept.ltd’s name taken on other extensions?
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Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with proofofconcept.ltd. Data is collected independently from public sources and some figures are estimates, provided for information only.
Spam and malware blocklists for the site's IP and mail servers.
When the site first appeared, and what has changed since.
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Found in public certificate transparency logs.
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