Cybersecurity Rating
by ImmuniWeb® CyberScore™

Hostname	URL	Grade	Tested on
rug.nl	https://www.rug.nl/	C	November 4th, 2026 00:46
www.rug.nl	https://www.rug.nl/	C	November 4th, 2026 00:56
imaphost.astro.rug.nl	https://sso.astro.rug.nl/auth/realms/kapteyn/protocol/openid-connect/auth?approval_prompt=force&client_id=oauth2-proxy&redirect_uri=https%3A%2F%2Fwebmail.astro.rug.nl%2Foauth2%2Fcallback&response_type=code&scope=openid+email+profile&state=hp5ueb5bwwRjSr7xUv9d1ypt5pZl-dsEJRU9qHJ1QLE%3A%2F	A+	November 4th, 2026 00:52
www.ai.rug.nl	https://www.rug.nl/research/bernoulli/	C	November 4th, 2026 00:54
dnpprepo.ub.rug.nl	https://dnpprepo.ub.rug.nl/	C	November 4th, 2026 00:55

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Website Privacy Rating | Overview

The total number of subdomains is capped at 50.

Hostname	URL	Grade	Tested on
rug.nl	https://www.rug.nl/	A+	November 4th, 2026 02:15
www.rug.nl	https://www.rug.nl/	A+	November 4th, 2026 02:15
imaphost.astro.rug.nl	https://sso.astro.rug.nl/auth/realms/kapteyn/protocol/openid-connect/auth?approval_prompt=force&client_id=oauth2-proxy&redirect_uri=https%3A%2F%2Fwebmail.astro.rug.nl%2Foauth2%2Fcallback&response_type=code&scope=openid+email+profile&state=9Tc962TVNzoiSE3JS8EJhJpbKQY-A-AP7OxIGO5zcsA%3A%2F	B+	November 4th, 2026 02:19
www.ai.rug.nl	https://www.rug.nl/research/bernoulli/	A+	November 4th, 2026 02:19
dnpprepo.ub.rug.nl	https://dnpprepo.ub.rug.nl/	A+	November 4th, 2026 02:19

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The total number of subdomains is capped at 50.

Hostname	URL	Protocol	Grade	Tested on
rug.nl	https://rug.nl 129.125.2.51:443	HTTPS	A+	November 4th, 2026 00:42
www.rug.nl	https://www.rug.nl 129.125.2.51:443	HTTPS	A+	November 4th, 2026 00:49
imaphost.astro.rug.nl	https://imaphost.astro.rug.nl 129.125.6.181:443	HTTPS	F	November 4th, 2026 00:49
www.ai.rug.nl	https://www.ai.rug.nl 129.125.14.191:443	HTTPS	B	November 4th, 2026 00:49
dnpprepo.ub.rug.nl	https://dnpprepo.ub.rug.nl 129.125.19.96:443	HTTPS	A+	November 4th, 2026 00:52

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Hostname	Grade	Tested on
rug.nl	A-	November 4th, 2026 00:42

Email Server Security Report
A total of 5 email servers were analyzed. Open relay was not detected, SMTP enumeration was not detected, a secure authentication was enforced across all tested servers, and PTR records were properly configured. The average response latency was approximately 0.041s.
Email SSL/TLS Encryption Report
SSL/TLS security testing was completed for 5 email servers. Server grade is B.
Email Server DNS Security Report
SPF is set properly, DKIM is set properly, and DMARC is set with issues. MTA-STS is not configured for this domain.
Email Server Black and Spam Lists Report
No email servers were found on blacklists.

No vibe-coded or AI-created code patterns detected across 51 websites.
No leaks of AI tokens or other AI-related and sensitive data detected on the Dark Web.
No leaks of AI tokens or other AI-related and sensitive data detected across 51 websites.

Hostname	Tested on
rug.nl	November 4th, 2026 00:40

Dark Web Exposure Report
A total of 795 dark web incidents detected, containing 5968 mentions of the domain. 692 out of 795 incidents originate from Compromised Databases. Out of all detected Compromised Credentials, 295 are considered to be of High risk. Mentions in Leaked Databases represent the most common source of compromised information, accounting for 5669 of the 5968 detected domain mentions on the Dark Web.
Unprotected Cloud Storage Report
No cloud storage buckets found.
Phishing Websites Report
No potential phishing websites found.
Cybersquatting Domains Report
No potential cybersquatting domains found.
Typosquatting Domains Report
No potential typosquatting domains found.
Fake Accounts in Social Media Report
No squatted social network accounts found.

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