How is zoom.us?

Looks fine risk 0/100

Registered 25 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 115 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

115 ms · ends at www.zoom.com

HTTPS

65 d

left on a DigiCert Inc certificate

Age

25 years

registered 2002-04-24

Blocklists

listings across 5 lists

Everything we looked at

DNS records6 record types

A	170.114.52.2
AAAA	2407:30c0:182::aa72:3402
MX	10 mxb-00569201.gslb.pphosted.com 10 mxa-00569201.gslb.pphosted.com
NS	ns-888.awsdns-47.net ns-387.awsdns-48.com ns-1772.awsdns-29.co.uk ns-1137.awsdns-14.org
TXT	v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com include:amazonses.com ip4:52.38.191.241 include:servers.mcsv.net include:_spf.salesforce.com ip4:13.110.78.0/24 ~all stripe-verification=c9c277e76c265ef8b27ee1fb8b7f6e6240daacf25d36f96d586c05301b0306eb facebook-domain-verification=r9u6lu6z5wy3yokf7yd52l6k08xqsx stripe-verification=56bc5cf2da44b2033da49b45ed3789209db29432268975666693a750ecfde757 vmware-cloud-verification-4d68d199-43dd-455f-ad71-18141d5d09c8 google-site-verification=r5_uj4r2YuGNrhng2dLo4xfDAvaYGhNuqv6icJiQdxA stripe-verification=29700ec8c3d8a93a634139f4dfe8a23a87f6b97829d3e6ea123d07f7e58504d0 teamviewer-sso-verification=4f42e066d37d4305b4091646efd91add stripe-verification=64a9e3b2f28cc3bb2182307c5c2ea98aa78bfe6a36ed5f22bd3d0bc9667a2510 status-page-domain-verification=pc76p1k8712r ljtjrbvpt98v132shnhkm0thlt dropbox-domain-verification=3s15m13l23wp oo414pse7fk8ntk80qoms9poc1 spycloud-domain-verification=889b71d1-9e56-48da-a7cc-f3bc6497ca2f autodesk-domain-verification=oPP5RpbpIX2AL7W7H2p2 atlassian-domain-verification=o4YG+mXlOE6uTJb7uGimcl9DJZnVg4aimBCf/4UrplRJvMk84JnXh2zF8jZz21Fx adobe-idp-site-verification=7116ab50a89b2c2402382aea3362209410eac90f2a590f358ce1189d0ca1a8c4 slack-domain-verification=DPFh88HZR7KVwJkwlh98Y0PgSABl6BKgY1hVlwhC mongodb-site-verification=LuLsVGWKjIwOk54WdscqbRmXgqU2kGIc cui69v35i9t5lj9360gajgt1tc google-site-verification=yofTND47qXdSBHRBZSkPUrP0QQ-WF76h-K-F05IHmj0 google-site-verification=RA1o2A5KlW67SrvzJ4JovDWlkMzOtxJnS6Lq4MWso1Q google-site-verification=JvBsPulrJw4xeN9DV9oeGqFDDUlAsJv-vLu1PriMw1g knowbe4-site-verification=c3a762336824e50b8902fc5d47a79dd9 anthropic-domain-verification-8fadf7=uwajz3dDn6eAq3Yl6LtArZNBA SFMC-FEDGKE8lGkIFM2TngfZtUoES_Ep-nR1DSOvRZFxz docusign=b21dec83-4d62-479c-b2aa-43a0cd4c125a v=DMARC1; p=reject; ri=3600; rua=mailto:sesbounce@zoom.us,mailto:dmarc_rua@emaildefense.proofpoint.com paloaltonetworks-site-verification=ab6a946a97f44c0b83b5cc59ba90e5f0c768666814ce8347703af032dbeff05c pardot_84442_=f0bf83bf261ad77163f6e86fc94ae06036d153cc65df5531309b396933da9591 canva-site-verification=Fxuo9x2-ohLElGZ9w9XYHw h1-domain-verification=5yw85Ewx1obuckMSkZQokfDYewnzdBw9JqKmZWMXqFs2F3cq atlassian-domain-verification=4y6yoGrdYbj4zq5bMXvpGI1KFVEzSVuWMYG4/Gv4BuFjIthTVBWnV8qf47TYfL5Q docker-verification=e55e0281-9c6f-4cba-8788-e50c50899b3f stripe-verification=68b6edce67880909a44aad0af814c3afe0bf8e053e70f81c70264bf9156c4861 nintex.5e7289cea709bf0d10e77561 stripe-verification=f613690c5cef6193bdc4638549691d7c4b80994cd6b47c182d9ce9afa560b964 google-site-verification=kzxH5gxEvbMw9EUX-uQNCNxzoHNk7eksOJdaOLt-WYA stripe-verification=933cf52c0e93778a0f3fbdc96954c1f6bd9813b6356cdc71667df03b44336c1e v=zoomadn us.zoom.idp.commercial=zoom.okta.com google-site-verification=G6mELnMFHZrRpJ_rAqHPDP2voFX3_g-lN78U-eJ7xJY stripe-verification=0628546b6023b9d18ecddf4eec9658f8513bb619d4ae413b1143f81b31ee7018 smartsheet-site-validation=DYfGXuyJc7oq-_D05ZZyl6QGXpRWSWpR apple-domain-verification=CbBNkhNvbPFzgvvv HaFoSdUeCSdJo9U8lG@NWZ6vnoRltUteEAl&yuY$$eE25sKJguFH58Lss%9@e73OK#XigH^i3mCDjax&gfZq90lw4k4Vi3UMpC
CAA	{'type': 'CAA', 'iodef': 'mailto:security@zoom.us', 'critical': 0} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} {'type': 'CAA', 'issue': 'digicert.com', 'critical': 0} {'type': 'CAA', 'issue': 'pki.goog', 'critical': 0} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'issue': 'godaddy.com', 'critical': 0} {'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0}

RegistrationMarkMonitor, Inc.

registrar	MarkMonitor, Inc.
registered	2002-04-24
expires	2027-04-23
last changed	2026-04-18
nameservers	ns-1772.awsdns-29.co.uk ns-387.awsdns-48.com ns-1137.awsdns-14.org ns-888.awsdns-47.net
status	client delete prohibited client transfer prohibited client update prohibited server update prohibited server delete prohibited server transfer prohibited

registered 2002-04-24expires 2027-04-23

HTTPS certificate65 days left

valid	yes
issuer	DigiCert Inc
covers	*.zoom.us, zoom.us
protocol	TLSv1.3

issued 2025-12-29expires 2026-12-29

DNSSECinsecure

Domain is not signed with DNSSEC

. → us → zoom.us

Email authenticationexcellent

SPF	pass `v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com include:amazonses.com ip4:52.38.191.241 include:servers.mcsv.net include:_spf.salesforce.com ip4:13.110.78.0/24 ~all`
DMARC	pass policy reject
DKIM	found: google, k1, s1, s2, mx

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 · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop170.114.52.2Barracuda170.114.52.2UCEPROTECT Level 1170.114.52.2

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=zoom.us" \ -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=zoom.us"

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

Watch zoom.us. 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