How is systemdns.com?

Be careful risk 20/100

Registered 23 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

23 years

registered 2003-08-09

Blocklists

listings across 4 lists; 1 did not answer

Everything we looked at

DNS records2 record types

A	216.40.33.15
NS	ns05.trs-dns.net ns05.trs-dns.com

RegistrationTucows Domains Inc.

registrar	Tucows Domains Inc.
registered	2003-08-09
expires	2027-08-09
last changed	2026-08-18
nameservers	ns05.trs-dns.com ns05.trs-dns.net
status	client transfer prohibited client update prohibited server delete prohibited server transfer prohibited

registered 2003-08-09expires 2027-08-09

HTTPS certificatenot valid

valid	no
problem	Connection timed out

DNSSECinsecure

Domain has DNSKEY but no DS record in parent zone

. → com → systemdns.com

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 · 125/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

0/45missing: CAA Records, SPF Record, DMARC Record, DKIM Presence

Advanced Security

10/25missing: Mail Server Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop216.40.33.15Barracuda216.40.33.15UCEPROTECT Level 1216.40.33.15

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=systemdns.com" \ -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=systemdns.com"

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

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

Watch systemdns.com. 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