Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BTLS Certificate Expiry & Recommendations82 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Submit your domain to hstspreload.org to be added to the Chrome preload list
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records2 A records, 30 ms lookupPASS
| A | 172.66.135.3, 172.66.139.239 |
| AAAA | 2606:4700:10::ac42:8bef, 2606:4700:10::ac42:8703 |
| CNAME | — |
| NS | derek.ns.cloudflare.com, laura.ns.cloudflare.com |
| MX | 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com |
| TXT | google-site-verification=EBNpQSVGNJCUkEzbk2vt2BLvvRHoIlgp4C48fBlZyLQ SPF v=spf1 mx include:mail.zendesk.com include:amazonses.com include:_spf.google.com... google-site-verification=WtVGAosO4JrjN_QGtENIbAEMcy5Dk7t6hcC4yQ5KC7A google-site-verification=8RMxuwfmm-wPif3Tvs3hWOlsoMgVXHT-mpHMTepW27E google-site-verification=YHOeBO5suOmGyGWX9dhGZEv2cUW5ggwJecams7zaPvg google-site-verification=J8_DjdsqBAPelUR1VXSV4jj4hX_ZfnWae_khwjr55wY |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Redirect ChainNo redirects — direct accessPASS
https://matrix.org
61 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://matrix.org | 200 | 61 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (17 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 1544 URLsPASS
User-agent: *
Disallow:
Allow: /
Sitemap: https://matrix.org/sitemap.xml
A+Domain Intelligencematrix.org — via Tucows Domains Inc., 31 years, 11 months oldPASS
471 days
November 1, 2027
82 days
Issued by Google Trust Services
31 years, 11 months
Registered November 2, 1994
Not enabled
Protects against DNS spoofing
Unknown
2606:4700:10::ac42:8bef
Tucows Domains Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice