How is cityheaven.net?

Looks fine risk 0/100

Registered 26 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 1518 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

403

1518 ms

HTTPS

31 d

left on a Amazon certificate

Age

26 years

registered 2000-07-19

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	57.181.221.172
MX	10 www645b.sakura.ne.jp
NS	ns-970.awsdns-57.net ns-295.awsdns-36.com ns-1242.awsdns-27.org ns-1954.awsdns-52.co.uk
TXT	v=spf1 +ip4:211.8.27.0/25 +ip4:210.228.141.128/25 +ip4:211.8.134.128/25 a:www645b.sakura.ne.jp mx ~all

RegistrationGMO Internet Group, Inc. d/b/a Onamae.com

registrar	GMO Internet Group, Inc. d/b/a Onamae.com
registered	2000-07-19
expires	2027-07-19
last changed	2026-06-12
owner	Whois Privacy Protection Service by onamae.com
nameservers	ns-1242.awsdns-27.org ns-1954.awsdns-52.co.uk ns-295.awsdns-36.com ns-970.awsdns-57.net
status	active

registered 2000-07-19expires 2027-07-19

HTTPS certificate31 days left

valid	yes
issuer	Amazon
covers	cityheaven.net, nights.fun
protocol	TLSv1.2

issued 2026-05-17expires 2026-11-30

DNSSECinsecure

Domain is not signed with DNSSEC

. → net → cityheaven.net

Email authenticationgood

SPF	pass `v=spf1 +ip4:211.8.27.0/25 +ip4:210.228.141.128/25 +ip4:211.8.134.128/25 a:www645b.sakura.ne.jp mx ~all`
DMARC	warning policy none
DKIM	found: s1, s2

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, DMARC 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 · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop57.181.221.172Barracuda57.181.221.172UCEPROTECT Level 157.181.221.172

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=cityheaven.net" \ -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=cityheaven.net"

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

Watch cityheaven.net. 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