HOW.IS
?

How is mdpi.com?

Looks fine risk 0/100

Registered 23 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 49 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

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

How mdpi.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
403
49 ms
HTTPS
188 d
left on a DigiCert Inc certificate
Age
23 years
registered 2003-12-19
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A23.212.251.87
23.212.251.71
23.212.251.78
AAAA2600:1408:c400:e::17cd:6a07
2600:1408:c400:e::17cd:6a0f
MX10 mail.mdpi.com
NSduke.ns.cloudflare.com
tia.ns.cloudflare.com
TXTMS=ms22287815
teamtailor=77e8a587477a29b8c3593dc9495ecb73
yahoo-verification-key=puT8WI8WEun8VA7UT6avJY4Ck+DwplIauEM9YJmzOB4=
teamtailor=8c49eb3de25673dd2d38fea4e2dcce62
anthropic-domain-verification-0gqk0p=F7Zo1HH7mxxuCicADqZIVVoxw
teamtailor=ea0bfb03d594f650556ecf8916782cc6
google-site-verification=8ILGAlmpYZT-asFMBkmbeopoNQ-tmhDNmTNPiAFMbrk
teamtailor=3bfe85f552a3915e3ad4b23af293ac47
atlassian-domain-verification=B8vS1pMclo3CtNoM1lEBx67CaALcw0VrjLBCUcyidI3VnIvUECd752eWuaJ6ni3H
MS=7983DA5502DEB40953AE07AF7287CD4DA1D92273
google-site-verification=5HGq1F7H_WX_Q3Qf85UZh5dEVC0fS5UeSizLzGTyw40
v=spf1 mx include:spf.mdpi.com include:25322191.spf10.hubspotemail.net include:spf.protection.outlook.com -all
teamtailor=bd3f6e65bf12733c2239b3551a5120b7
teamtailor=58fdad9a36360e0b3926144848860501
teamtailor-domain-verification=a283d2897d2a3994d80f17065454404b
CAA{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}
{'type': 'CAA', 'issue': 'certainly.com', 'critical': 0}
{'type': 'CAA', 'issue': 'zerossl.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
RegistrationNetwork Solutions, LLC
registrarNetwork Solutions, LLC
registered2003-12-19
expires2034-05-12
last changed2024-05-12
ownerhidden by privacy service
nameserversduke.ns.cloudflare.com
tia.ns.cloudflare.com
statusclient transfer prohibited
registered 2003-12-19expires 2034-05-12
HTTPS certificate188 days left
validyes
issuerDigiCert Inc
covers*.mdpi.com, mdpi.com
protocolTLSv1.3
issued 2026-10-17expires 2027-05-03
DNSSECinsecure

Domain has DNSKEY but no DS record in parent zone

. → com → mdpi.com
Email authenticationexcellent
SPFpass v=spf1 mx include:spf.mdpi.com include:25322191.spf10.hubspotemail.net include:spf.protection.outlook.com -all
DMARCpass policy quarantine
DKIMfound: k1, s1, s2, email

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

Security scoregrade B · 170/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
45/45missing: DKIM Presence
Advanced Security
20/25missing: Mail Server Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 11 lookups
SURBL MultidomainURIBL MultidomainSpamCop23.212.251.87Barracuda23.212.251.87UCEPROTECT Level 123.212.251.87SpamCop23.212.251.78Barracuda23.212.251.78UCEPROTECT Level 123.212.251.78SpamCop23.212.251.71Barracuda23.212.251.71UCEPROTECT Level 123.212.251.71

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=mdpi.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=mdpi.com"

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

Watch mdpi.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