HOW.IS
?

How is mailchi.mp?

Not sure yet risk 10/100

On no blocklists we checked, valid HTTPS, the site answered 200 in 171 ms.

Why

02050100
finecarefulhigh risk
  • +10Could not read the domain's registration record.
  • ·Could not check registration; retry before trusting this domain.

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

How mailchi.mp looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
171 ms · ends at mailchimp.com
HTTPS
21 d
left on a Let's Encrypt certificate
Age
?
creation date not reported
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records4 record types
A104.81.174.162
MX0 .
NSa6-66.akam.net
a4-65.akam.net
a1-205.akam.net
a5-65.akam.net
a14-66.akam.net
a7-66.akam.net
TXT_dnsauth= 2bdfn16j7yq94p9z8lm6txdktwk00rb8
_toin9huu589agyp4696chh14he1uapf
google-site-verification=-zv1gucS2cm8NrS-dbqQIUm-e6n28RSFjC1llEK3tMU
_sntdcyrz33vmvon0cxroi35i3jukxil
mc9b7rzy3grxm948y2xcgz5dxr7kd240
Registrationregistrar not reported
HTTPS certificate21 days left
validyes
issuerLet's Encrypt
coverse2e.mailchi.mp, mailchi.mp
protocolTLSv1.3
issued 2026-08-20expires 2026-11-18
DNSSECinsecure

Domain is not signed with DNSSEC

. → mp → mailchi.mp
Email authenticationpoor
SPFnone
DMARCnone
DKIMnone 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 MultidomainSpamCop104.81.174.162Barracuda104.81.174.162UCEPROTECT Level 1104.81.174.162

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=mailchi.mp" \ -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=mailchi.mp"

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

Watch mailchi.mp. 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