How is sakura.ne.jp?

Looks fine risk 0/100

Registered 9 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 2921 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

2921 ms · ends at rs.sakura.ad.jp

HTTPS

119 d

left on a Japan Registry Services Co., Ltd. certificate

Age

9 years

registered 2017-07-21

Blocklists

listings across 5 lists

Everything we looked at

DNS records3 record types

A	163.43.179.80
MX	30 mail.sakura.ad.jp
NS	ns1.dns.ne.jp ns2.dns.ne.jp

Registrationregistrar not reported

registered	2017-07-21
expires	2027-07-31
last changed	2026-08-01
nameservers	ns1.dns.ne.jp ns2.dns.ne.jp
status	Connected (2027/07/31)

registered 2017-07-21expires 2027-07-31

HTTPS certificate119 days left

valid	yes
issuer	Japan Registry Services Co., Ltd.
covers	www.sakura.ne.jp, sakura.ne.jp
protocol	TLSv1.3

issued 2026-09-04expires 2027-02-28

DNSSECinsecure

Domain is not signed with DNSSEC

. → jp → ne.jp → sakura.ne.jp

Email authenticationpoor

SPF	none
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade C · 120/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

0/45missing: CAA Records, SPF Record, 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 MultidomainSpamCop163.43.179.80Barracuda163.43.179.80UCEPROTECT Level 1163.43.179.80

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=sakura.ne.jp" \ -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=sakura.ne.jp"

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

IPv6. Does sakura.ne.jp work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch sakura.ne.jp. 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