How is plos.org?
Looks fine
risk 0/100
Registered 26 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 141 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
200
141 ms
HTTPS
36 d
left on a Google Trust Services certificate
Age
26 years
registered 2000-10-02
Blocklists
0
listings across 5 lists
Everything we looked at
DNS records5 record types
| A | 104.26.8.182 172.67.71.157 104.26.9.182 |
|---|---|
| AAAA | 2606:4700:20::681a:8b6 2606:4700:20::681a:9b6 2606:4700:20::ac43:479d |
| MX | 0 plos-org.mail.protection.outlook.com |
| NS | chad.ns.cloudflare.com paloma.ns.cloudflare.com |
| TXT | Foxit-domain-verification=554cf8f493f57f0391b6b6709c0fbf73 MS=ms71193127 Public Library of Science, 415 624 1200 apple-domain-verification=rD6IKpFy01dItKGF atlassian-domain-verification=KBcW5CfwNLAM/0qR7EQaMQ6EpgX44xvccXJeJ0OcGjQBKxmaTdcodrsuJ8iEsEcr atlassian-sending-domain-verification=dadfeefb-1bb8-45b2-8306-8ad0d2d3e4d2 ca3-87a44bcab6ee4852be6d9eac3d8d49bb figma-domain-verification=7cce239e2730b9b08d37cb244675667a80fcb3270b5fb6f5ae256280928d386b-1725561284 google-site-verification=JlE5EuzC0Q8baR-8PLjIWrI-VB2Y9Bp-8CZSB2PhKMo google-site-verification=VAPTCiihexaJpNUbasuVV-uJ8QmS22icu4cbxxsnVoM google-site-verification=a6YDaJzSVW7_Lu5X_e1HoC6kG7wAtD4vI7WtCpjZjb0 google-site-verification=g9PQGJfRFNffB4MEiJ_b7sA_J94yIXtFsQa0aHT3u5A status-page-domain-verification=pzzg3z65n146 v=spf1 mx a ip4:136.147.136.128 ip4:184.23.159.2 ip4:216.74.38.68 ip4:50.56.130.220 exists:%{i}._spf.mta.salesforce.com include:spf.protection.outlook.com include:sendgrid.net include:relay.kinstamailservice.com include:app.sgizmo.com include:stspg-customer.com include:44092021.spf10.hubspotemail.net ~all |
RegistrationCloudflare, Inc.
| registrar | Cloudflare, Inc. |
|---|---|
| registered | 2000-10-02 |
| expires | 2027-10-02 |
| last changed | 2026-09-07 |
| owner | DATA REDACTED |
| nameservers | chad.ns.cloudflare.com paloma.ns.cloudflare.com |
| status | client transfer prohibited |
registered 2000-10-02expires 2027-10-02
HTTPS certificate36 days left
| valid | yes |
|---|---|
| issuer | Google Trust Services |
| covers | plos.org, *.plos.org |
| protocol | TLSv1.3 |
issued 2026-09-05expires 2026-12-04
DNSSECinsecure
Domain is not signed with DNSSEC
. → org → plos.org
Email authenticationexcellent
| SPF | pass v=spf1 mx a ip4:136.147.136.128 ip4:184.23.159.2 ip4:216.74.38.68 ip4:50.56.130.220 exists:%{i}._spf.mta.salesforce.com include:spf.protection.outlook.com include:sendgrid.net include:relay.kinstamailservice.com include:app.sgizmo.com include:stspg-customer.com include:44092021.spf10.hubspotemail.net ~all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: selector1, s1, s2 |
Whether mail claiming to be from this domain can be checked as genuine.
Security scoregrade B · 155/205
Basic Security10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security30/45missing: CAA Records, DKIM Presence
Advanced Security20/25missing: Mail Server Configuration
Domain Reputation50/50
Threat Detection45/45missing: Domain Age Check
Blocklists0 listings · 11 lookups
SURBL MultidomainURIBL MultidomainSpamCop172.67.71.157Barracuda172.67.71.157UCEPROTECT Level 1172.67.71.157SpamCop104.26.9.182Barracuda104.26.9.182UCEPROTECT Level 1104.26.9.182SpamCop104.26.8.182Barracuda104.26.8.182UCEPROTECT Level 1104.26.8.182
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=plos.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=plos.org"
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on plos.org.
Reference: /llms.txt.
Watch plos.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