How is w3.org?
Looks fine
risk 0/100
Registered 32 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 163 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
163 ms · ends at www.w3.org
HTTPS
40 d
left on a Google Trust Services certificate
Age
32 years
registered 1994-07-06
Blocklists
0
listings across 5 lists
Everything we looked at
DNS records6 record types
| A | 104.18.23.19 104.18.22.19 |
|---|---|
| AAAA | 2606:4700::6812:1713 2606:4700::6812:1613 |
| MX | 5 pan.w3.org 5 puck.w3.org |
| NS | jamie.ns.cloudflare.com pranab.ns.cloudflare.com |
| TXT | 853C844562 ca3-d6556337888945edac9c159a068c46a2 google-site-verification=cu9dn6ytlndLOV87MLxedTHxoKTRKk0dUf_jXK8OsTc anthropic-domain-verification-xwqnyg=KpEpoEkHUmXnsWC0mhnfKFBrr google-site-verification=dS4IjfXgopxupUFDAqg3wk94IIZ2GuQ-jW4wiLm69Rg v=spf1 mx ip4:34.238.48.92 ip4:34.199.101.240 ip6:2600:1f18:7d7a:2700::/56 include:_spf.google.com ~all google-site-verification=5TpwKtmzdpa5fntQgKHY96mTJ3FiSn9fGp07XKxFsMk google-site-verification=CZkSL9bXgKDxRmeDnAQorwhaQy3Ji1vTn36bBn5rL-E |
| CAA | {'type': 'CAA', 'critical': 0, 'issuewild': 'sectigo.com'} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'issue': 'comodoca.com', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'letsencrypt.org'} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} {'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0} {'type': 'CAA', 'issue': 'digicert.com; cansignhttpexchanges=yes', 'critical': 0} {'type': 'CAA', 'issue': 'ssl.com', 'critical': 0} {'type': 'CAA', 'iodef': 'mailto:sysreq@w3.org', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'ssl.com'} {'type': 'CAA', 'issue': 'pki.goog; cansignhttpexchanges=yes', 'critical': 0} {'type': 'CAA', 'critical': 0, 'issuewild': 'pki.goog; cansignhttpexchanges=yes'} {'type': 'CAA', 'critical': 0, 'issuewild': 'comodoca.com'} {'type': 'CAA', 'critical': 0, 'issuewild': 'digicert.com; cansignhttpexchanges=yes'} |
RegistrationGandi SAS
| registrar | Gandi SAS |
|---|---|
| registered | 1994-07-06 |
| expires | 2029-07-05 |
| last changed | 2026-08-12 |
| owner | hidden by privacy service |
| nameservers | jamie.ns.cloudflare.com pranab.ns.cloudflare.com |
| status | client delete prohibited client transfer prohibited |
registered 1994-07-06expires 2029-07-05
HTTPS certificate40 days left
| valid | yes |
|---|---|
| issuer | Google Trust Services |
| covers | w3.org, *.w3.org |
| protocol | TLSv1.3 |
issued 2026-09-06expires 2026-12-05
DNSSECinsecure
Domain is not signed with DNSSEC
. → org → w3.org
Email authenticationexcellent
| SPF | pass v=spf1 mx ip4:34.238.48.92 ip4:34.199.101.240 ip6:2600:1f18:7d7a:2700::/56 include:_spf.google.com ~all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: s1 |
Whether mail claiming to be from this domain can be checked as genuine.
Security scoregrade A · 175/205
Basic Security10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security45/45missing: DKIM Presence
Advanced Security25/25
Domain Reputation50/50
Threat Detection45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop104.18.23.19Barracuda104.18.23.19UCEPROTECT Level 1104.18.23.19SpamCop104.18.22.19Barracuda104.18.22.19UCEPROTECT Level 1104.18.22.19
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=w3.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=w3.org"
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on w3.org.
Reference: /llms.txt.
Watch w3.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