HOW.IS
?

How is xserver.jp?

Be careful risk 20/100

Registered 20 years ago, on no blocklists we checked, no valid HTTPS certificate, the site did not answer (timed out).

Why

02050100
finecarefulhigh risk
  • +20No valid HTTPS certificate.

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

Site
down
timed out
HTTPS
invalid
Connection timed out
Age
20 years
registered 2006-07-31
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A202.226.36.238
MX0 mail.xserver.jp
NSns2.xserver.jp
ns3.xserver.jp
ns1.xserver.jp
TXTv=spf1 +ip4:202.226.37.0/24 +ip4:210.188.219.20 ~all
Registrationregistrar not reported
registered2006-07-31
expires2027-07-31
last changed2026-08-03
ownerXSERVER Inc.
nameserversns1.xserver.jp
ns2.xserver.jp
ns3.xserver.jp
ns4.xserver.jp
ns5.xserver.jp
statusActive
registered 2006-07-31expires 2027-07-31
HTTPS certificatenot valid
validno
problemConnection timed out
DNSSECinsecure

Domain is not signed with DNSSEC

. → jp → xserver.jp
Email authenticationpoor
SPFpass v=spf1 +ip4:202.226.37.0/24 +ip4:210.188.219.20 ~all
DMARCnone
DKIMnone of 1 common selectors

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

Security scoregrade C · 135/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
15/45missing: 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 MultidomainSpamCop202.226.36.238Barracuda202.226.36.238UCEPROTECT Level 1202.226.36.238

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=xserver.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=xserver.jp"

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

Watch xserver.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