Cybersecurity Rating
by ImmuniWeb® CyberScore™

Hostname	URL	Grade	Tested on
a16z.com	https://a16z.com/	A	October 16th, 2026 16:59
www.a16z.com	https://a16z.com/	A	October 16th, 2026 16:59
go2.a16z.com	https://go2.a16z.com/	A+	October 16th, 2026 16:54
portfoliojobs.a16z.com	https://portfoliojobs.a16z.com/jobs	C	October 16th, 2026 16:54
cryptostartupschool.a16z.com	https://a16zcrypto.com/accelerator/	C	October 16th, 2026 16:55

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Website Privacy Rating | Overview

The total number of subdomains is capped at 50.

Hostname	URL	Grade	Tested on
a16z.com	https://a16z.com/	F	October 16th, 2026 16:44
www.a16z.com	https://a16z.com/	F	October 16th, 2026 16:56
go2.a16z.com	https://go2.a16z.com/	A	October 16th, 2026 16:56
portfoliojobs.a16z.com	https://portfoliojobs.a16z.com/jobs	A+	October 16th, 2026 16:56
cryptostartupschool.a16z.com	https://a16zcrypto.com/accelerator/	B	October 16th, 2026 16:56

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The total number of subdomains is capped at 50.

Hostname	URL	Protocol	Grade	Tested on
a16z.com	https://a16z.com 3.173.21.177:443	HTTPS	A+	October 16th, 2026 16:44
www.a16z.com	https://www.a16z.com 3.173.22.177:443	HTTPS	A+	October 16th, 2026 16:52
go2.a16z.com	https://go2.a16z.com 104.17.71.206:443	HTTPS	A	October 16th, 2026 16:51
portfoliojobs.a16z.com	https://portfoliojobs.a16z.com 35.71.172.103:443	HTTPS	A+	October 16th, 2026 16:51
cryptostartupschool.a16z.com	https://cryptostartupschool.a16z.com 54.176.52.177:443	HTTPS	A+	October 16th, 2026 16:52

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Hostname	Grade	Tested on
a16z.com	A-	October 16th, 2026 16:48

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 0.069s.
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 properly. MTA-STS is not configured for this domain.
Email Server Black and Spam Lists Report
1 of 5 email servers were listed on one or more blacklists, with up to 2 blacklist listings detected for a single server.

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
a16z.com	October 16th, 2026 16:42

Dark Web Exposure Report
A total of 123 dark web incidents detected, containing 1344 mentions of the domain. 113 out of 123 incidents originate from Compromised Databases. Out of all detected Compromised Credentials, 58 are considered to be of High risk. Mentions in Leaked Databases represent the most common source of compromised information, accounting for 1303 of the 1344 detected domain mentions on the Dark Web.
Unprotected Cloud Storage Report
A total of 1 bucket detected across 1 cloud storage provider: 1 bucket was detected in Google Cloud Storage.
Phishing Websites Report
No potential phishing websites found.
Cybersquatting Domains Report
36 potential cybersquatting domains detected. Example domains: a16z.ca, a16z.kr and a16z.com.br; additional cybersquatting domains are available in the detailed report.
Typosquatting Domains Report
No potential typosquatting domains found.
Fake Accounts in Social Media Report
No squatted social network accounts found.

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