How is sciencemag.org?

Looks fine risk 0/100

Registered 31 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 300 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

403

300 ms

HTTPS

130 d

left on a Amazon certificate

Age

31 years

registered 1996-04-28

Blocklists

listings across 5 lists

Everything we looked at

DNS records3 record types

A	54.151.119.244 52.8.62.150
NS	ns03.aaas.org ns02.aaas.org ns01.aaas.org
TXT	google-site-verification=W7u_zrZknuKuot7tAWIfvwVkgjrL6gxpRwQIyQZElWM google-site-verification=4cTnldeRolO0LyfYFtFwwqJ2zc1THuMUJO7Iuz7lhAw ca3-15e5411404d7491896a4f30f021f6cdb google-site-verification=G822PgSFgz2vPo3Fu0C9bLXb58t_1knzSqDSspCULwc facebook-domain-verification=wg09i5246crh70b536l2hagkr1x0p9

RegistrationNetwork Solutions, LLC

registrar	Network Solutions, LLC
registered	1996-04-28
expires	2030-04-29
last changed	2026-08-12
nameservers	ns01.aaas.org ns02.aaas.org ns03.aaas.org
status	client transfer prohibited

registered 1996-04-28expires 2030-04-29

HTTPS certificate130 days left

valid	yes
issuer	Amazon
covers	*.sciencemag.org, sciencemag.org
protocol	TLSv1.2

issued 2026-08-26expires 2027-03-11

DNSSECinsecure

Domain is not signed with DNSSEC

. → org → sciencemag.org

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 D · 110/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

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

Advanced Security

5/25missing: Mail Server Configuration, SOA Record Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 8 lookups

SURBL MultidomainURIBL MultidomainSpamCop52.8.62.150Barracuda52.8.62.150UCEPROTECT Level 152.8.62.150SpamCop54.151.119.244Barracuda54.151.119.244UCEPROTECT Level 154.151.119.244

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=sciencemag.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=sciencemag.org"

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

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

Watch sciencemag.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