We couldn't read an SSL certificate for it when we last analysed it.
What security vendors and the WOT community say about this domain.
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What loads and tracks visitors when the homepage opens.
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We couldn't read an SSL certificate on port 443 when we last analysed bestbook.cool. Refresh the analysis to check again.
106 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| bestbook.fun | Other extension | 6 Nov 2026 | Checking… | Report → |
| bestbook.space | Other extension | 3 Nov 2026 | Checking… | Report → |
| bestbook.store | Other extension | 10 Oct 2026 | Checking… | Report → |
| bestbook.app | Other extension | 3 Oct 2026 | Checking… | Report → |
| bestbook.xyz | Other extension | 28 Sept 2026 | Checking… | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is bestbook.cool’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 bestbook.cool. 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.
Found in public certificate transparency logs.
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When the site first appeared, and what has changed since.
We record what changes from the next time this report is refreshed.