How is syosetu.org?

Looks fine risk 0/100

Registered 14 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 51 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

51 ms

HTTPS

52 d

left on a Google Trust Services certificate

Age

14 years

registered 2012-07-14

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	104.20.25.106 172.66.167.119
MX	19 route2.mx.cloudflare.net 2 route1.mx.cloudflare.net 5 route3.mx.cloudflare.net
NS	adele.ns.cloudflare.com hank.ns.cloudflare.com
TXT	brave-ledger-verification=2469679e4175d453a81ffb531e54da9ab9ad4b293a298153c2dfd46a504d9e4d brave-ledger-verification=c6912b7016afdafad4dab3bb82aa8a09d85e7c29d834547dc2c00179555e408f google-site-verification=34HyhNNYqFaYVGa67DBdlK0as3VxEr4on06zkq2XQKg google-site-verification=hHsrVJi4Fo_lGsxCNVj4mJczTi5b0i80zVXOG6fsGhA v=spf1 include:_spf.mx.cloudflare.net include:amazonses.com ~all

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

registrar	GMO Internet Group, Inc. d/b/a Onamae.com
registered	2012-07-14
expires	2035-07-14
last changed	2026-09-20
owner	Whois Privacy Protection Service by VALUE-DOMAIN
nameservers	adele.ns.cloudflare.com hank.ns.cloudflare.com
status	client transfer prohibited

registered 2012-07-14expires 2035-07-14

HTTPS certificate52 days left

valid	yes
issuer	Google Trust Services
covers	syosetu.org, *.syosetu.org
protocol	TLSv1.3

issued 2026-09-22expires 2026-12-21

DNSSECinsecure

Domain is not signed with DNSSEC

. → org → syosetu.org

Email authenticationfair

SPF	pass `v=spf1 include:_spf.mx.cloudflare.net include:amazonses.com ~all`
DMARC	warning policy none
DKIM	none of 1 common selectors

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

Security scoregrade B · 148/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

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

Advanced Security

20/25missing: IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 8 lookups

SURBL MultidomainURIBL MultidomainSpamCop172.66.167.119Barracuda172.66.167.119UCEPROTECT Level 1172.66.167.119SpamCop104.20.25.106Barracuda104.20.25.106UCEPROTECT Level 1104.20.25.106

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=syosetu.org" \ -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=syosetu.org"

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

Watch syosetu.org. 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