How is bsky.app?

Looks fine risk 0/100

Registered 4 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 82 ms.

Why

02050100

finecarefulhigh risk

·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.

Site

200

82 ms

HTTPS

109 d

left on a Amazon certificate

Age

4 years

registered 2022-09-27

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	3.137.2.164 3.148.68.129 52.14.60.193
MX	1 aspmx.l.google.com
NS	ns-2001.awsdns-58.co.uk ns-757.awsdns-30.net ns-1425.awsdns-50.org ns-372.awsdns-46.com
TXT	google-site-verification=Y85ssVszowlKMCTQtWZoqCWH4x_2sV7NCCa7BlGJpiw v=spf1 mx include:mail.zendesk.com ?all google-site-verification=ppFonct21Z0sM_XgszQxPAJlnwgjeDzx8Qi3xnN3FAI google-site-verification=YglIh7PA59zIzMTb-hrvNHZK8WpGjJLXWbMKof6OhR8

RegistrationSquarespace Domains II LLC.

registrar	Squarespace Domains II LLC.
registered	2022-09-27
expires	2028-09-27
last changed	2025-10-10
nameservers	ns-1425.awsdns-50.org ns-2001.awsdns-58.co.uk ns-372.awsdns-46.com ns-757.awsdns-30.net
status	client delete prohibited client transfer prohibited

registered 2022-09-27expires 2028-09-27

HTTPS certificate109 days left

valid	yes
issuer	Amazon
covers	bsky.app
protocol	TLSv1.2

issued 2026-01-14expires 2027-02-12

DNSSECinsecure

Domain is not signed with DNSSEC

. → app → bsky.app

Email authenticationfair

SPF	warning `v=spf1 mx include:mail.zendesk.com ?all`
DMARC	pass policy reject
DKIM	none of 1 common selectors

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade B · 153/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

23/45missing: CAA Records, SPF Record, DKIM Presence

Advanced Security

15/25missing: Mail Server Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 11 lookups

SURBL MultidomainURIBL MultidomainSpamCop3.148.68.129Barracuda3.148.68.129UCEPROTECT Level 13.148.68.129SpamCop52.14.60.193Barracuda52.14.60.193UCEPROTECT Level 152.14.60.193SpamCop3.137.2.164Barracuda3.137.2.164UCEPROTECT Level 13.137.2.164

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=bsky.app" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=bsky.app"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on bsky.app. Reference: /llms.txt.

Watch bsky.app. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days