Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations36 days until leaf cert expires — 2 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records4 A records, 45 ms lookupPASS
| A | 185.199.110.153, 185.199.108.153, 185.199.109.153, 185.199.111.153 |
| AAAA | 2606:50c0:8001::153, 2606:50c0:8002::153, 2606:50c0:8003::153, 2606:50c0:8000::153 |
| CNAME | — |
| NS | tia.ns.cloudflare.com, ricardo.ns.cloudflare.com |
| MX | 1 fluorine.libera.chat |
| TXT | SPF v=spf1 a:fluorine.libera.chat ~all |
| 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://libera.chat
6 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://libera.chat | 200 | 6 ms | HTTP/1.1 | GitHub.com |
A+IPv6 ReadinessIPv6 reachable (0 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 178 URLsPASS
Sitemap: https://libera.chat/sitemap.xml
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencelibera.chat — via Cloudflare, Inc, 5 years oldPASS
285 days
April 23, 2027
36 days
Issued by Let's Encrypt
5 years
Registered April 23, 2021
Enabled
Protects against DNS spoofing
Unknown
2606:50c0:8003::153
Cloudflare, Inc
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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