How is semanticscholar.org?

Looks fine risk 0/100

Registered 12 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 197 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

197 ms · ends at www.semanticscholar.org

HTTPS

94 d

left on a Amazon certificate

Age

12 years

registered 2014-09-05

Blocklists

listings across 5 lists

Everything we looked at

DNS records6 record types

A	52.85.193.73 52.85.193.17 52.85.193.53 52.85.193.38
AAAA	2600:9000:215a:8600:6:4565:580:93a1 2600:9000:215a:2800:6:4565:580:93a1 2600:9000:215a:3c00:6:4565:580:93a1 2600:9000:215a:da00:6:4565:580:93a1 2600:9000:215a:6000:6:4565:580:93a1 2600:9000:215a:9800:6:4565:580:93a1 2600:9000:215a:2600:6:4565:580:93a1 2600:9000:215a:5600:6:4565:580:93a1
MX	10 aspmx2.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 1 aspmx.l.google.com 10 aspmx3.googlemail.com
NS	ns-1437.awsdns-51.org ns-586.awsdns-09.net ns-1772.awsdns-29.co.uk ns-290.awsdns-36.com
TXT	v=spf1 include:_spf.google.com a mx ip4:52.10.131.143 a mx ip4:52.11.211.149 ip4:35.160.27.221 ip4:54.149.223.60 include:5910970.spf08.hubspotemail.net include:mg-spf.greenhouse.io ~all google-site-verification=XQD87lq7o-ceBjMa_bB7iZ-VbQAElBnOjnDXpRQOWf0
CAA	{'type': 'CAA', 'critical': 0, 'issuewild': 'pki.goog; cansignhttpexchanges=yes'} {'type': 'CAA', 'issue': 'digicert.com', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog; cansignhttpexchanges=yes', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com'} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'letsencrypt.org'} {'type': 'CAA', 'critical': 0, 'issuewild': 'amazon.com'} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}

RegistrationAmazon Registrar, Inc.

registrar	Amazon Registrar, Inc.
registered	2014-09-05
expires	2027-09-05
last changed	2026-08-12
owner	c/o whoisproxy.com
nameservers	ns-1437.awsdns-51.org ns-1772.awsdns-29.co.uk ns-290.awsdns-36.com ns-586.awsdns-09.net
status	client transfer prohibited

registered 2014-09-05expires 2027-09-05

HTTPS certificate94 days left

valid	yes
issuer	Amazon
covers	.semanticscholar.org, .semanticscholar.com, s2.allenai.org, *.s2.allenai.org, semanticscholar.org, semanticscholar.com
protocol	TLSv1.3

issued 2026-01-07expires 2027-02-04

DNSSECinsecure

Domain is not signed with DNSSEC

. → org → semanticscholar.org

Email authenticationexcellent

SPF	pass `v=spf1 include:_spf.google.com a mx ip4:52.10.131.143 a mx ip4:52.11.211.149 ip4:35.160.27.221 ip4:54.149.223.60 include:5910970.spf08.hubspotemail.net include:mg-spf.greenhouse.io ~all`
DMARC	pass policy reject
DKIM	found: google

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

Security scoregrade A · 185/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

45/45missing: DKIM Presence

Advanced Security

25/25

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 14 lookups

SURBL MultidomainURIBL MultidomainSpamCop52.85.193.17Barracuda52.85.193.17UCEPROTECT Level 152.85.193.17SpamCop52.85.193.73Barracuda52.85.193.73UCEPROTECT Level 152.85.193.73SpamCop52.85.193.38Barracuda52.85.193.38UCEPROTECT Level 152.85.193.38SpamCop52.85.193.53Barracuda52.85.193.53UCEPROTECT Level 152.85.193.53

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=semanticscholar.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=semanticscholar.org"

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

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

Watch semanticscholar.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