justinguo.dev is registered with domain: DEV. 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.
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 justinguo.dev. Refresh the analysis to check again.
2 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| justingu.app | Typo | 10 Sept 2026 | Checking… | Report → |
| justinzguo.com | Extra letter | 26 Aug 2026 | Checking… | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is justinguo.dev’s name taken on other extensions?
| Host | Mail server | TTL |
|---|---|---|
| justinguo.dev | 1 smtp.google.com | 300 |
| Host | Name server | TTL |
|---|---|---|
| justinguo.dev | camilo.ns.cloudflare.com | 21600 |
| justinguo.dev | mimi.ns.cloudflare.com | 21600 |
| Host | Text | TTL |
|---|---|---|
| justinguo.dev | "v=spf1 include:_spf.google.com ~all" | 300 |
| Host | Start of authority | TTL |
|---|---|---|
| justinguo.dev | camilo.ns.cloudflare.com dns.cloudflare.com 2372066867 10000 2400 604800 1800 | 1800 |
| Host | Value | TTL |
|---|---|---|
| justinguo.dev | 256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA== | 3600 |
| justinguo.dev | 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ== | 3600 |
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Common questions, answered from this report's data.
justinguo.dev has no community safety rating yet. We couldn't read an SSL certificate on it when we last analysed it. See Security →
justinguo.dev is registered through domain: DEV. See Overview →
The first response from http://www.justinguo.dev, before any redirect: caching, server and policy headers.
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with justinguo.dev. 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.