Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BRedirect Chain1 redirect(s), 1084 ms totalREVIEW
https://whmcs.com
529 ms · HTTP/1.1
https://www.whmcs.com/
555 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://whmcs.com | 301 | 529 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.whmcs.com/ | 200 | 555 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations85 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- 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, 32 ms lookupPASS
| A | 172.66.151.35, 104.20.36.75 |
| AAAA | 2606:4700:10::6814:244b, 2606:4700:10::ac42:9723 |
| CNAME | — |
| NS | ns2.whmcs.com, ns1.whmcs.com |
| MX | 0 whmcs-com.mail.protection.outlook.com |
| TXT | google-site-verification=EYRNIhHKXoTTgI09icG9RzKxAFVo6QFqt1tRdHDih_0 google-site-verification=4Ulf1rBpWWcmlS-cbs5WZ3iXs76utB1q8MXhsmlTIqI ZOOM_verify_kODLQaPgTk6we1aSZUKVxA facebook-domain-verification=yp03vh9k65tlvwspcs6qsl8rcmcwjs atlassian-domain-verification=vcYdHk4xtnbRpbrSLWAxTbfXTGV6hunHiLsUuCQnceklQF/q5L... github-verification=vxBXcdSEufn37FKt5LetUEHpCv5TEh3UvAWAWLED google-site-verification=yRPOH45lm4XUKiUZeLwFScIcQPBD_JmuvI4uvO4OU5A MS=ms12214042 knowbe4-site-verification=908000ab199b1eca5e17f7271a4559cd apple-domain-verification=wuYDkEX7tNQfFe7u SPF v=spf1 a mx a:marketplace.whmcs.com ip4:184.94.192.9 ip4:184.94.192.10 ip4:208.7... |
| 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+IPv6 ReadinessIPv6 reachable (17 ms)PASS
ADomain Intelligencewhmcs.com — via eNom, LLC, 21 years, 2 months oldPASS
EXPIRED
June 10, 2026
85 days
Issued by Google Trust Services
21 years, 2 months
Registered June 10, 2005
Not enabled
Protects against DNS spoofing
Unknown
2606:4700:10::ac42:9723
eNom, LLC
Expiry timeline
Recommended actions
- Domain has EXPIRED — renew immediately to avoid total site outage
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Consider enabling auto-renewal to prevent accidental expiration.
Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.
Source: ICANN renewal policy
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