Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.FIPv6 ReadinessActionIPv6 records exist but unreachableFIX
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.
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Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.
Source: RFC 8305 (Happy Eyeballs)
BCrawlabilityrobots.txt present, no sitemapREVIEW
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.
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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
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
User-agent: AhrefsBot
Crawl-Delay: 15
User-agent: *
Disallow: /search/index.php
Disallow: /mod/forum/search.php
Disallow: /plugins/*/stats
Disallow: /plugins/*/translations
Disallow: /plugins/*/*
Content-Signal: ai-train=no, search=yes, ai-input=no
Crawl-Delay: 10
No sitemap found
Adding a sitemap helps search engines discover your pages.
BHTTP Probe TimingTotal 1178 ms — DNS, TCP, TLS, TTFB, content transfer breakdownREVIEW
Connection waterfall
BTLS Certificate Expiry & Recommendations49 days until leaf cert expires — 5 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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, 20 ms lookupPASS
| A | 172.66.175.83, 104.20.33.175 |
| AAAA | 2606:4700:10::6814:21af, 2606:4700:10::ac42:af53 |
| CNAME | — |
| NS | coco.ns.cloudflare.com, ken.ns.cloudflare.com |
| MX | 1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 alt4.aspmx.l.google.com 10 alt3.aspmx.l.google.com |
| TXT | atlassian-sending-domain-verification=5c19c978-4c5d-42bb-a6a4-d1279ce3ccad google-site-verification=NQi2s5ZWojF8CdAktCN1zN_aOwnfwur1peVbyrXj9UY google-site-verification=VytrIW3H9VG5SpHt58ykTWEHoX_WKD2mCdfgQR08w4g google-site-verification=WSnc7NrGdppCXErP089bKt1shfzgzTg9kibxB65vzzk google-site-verification=rYRgbf8zTaO8wFFAKXZCkDbBhcP4zWPIyGfktprsdN0 SPF v=spf1 include:_spf.google.com include:amazonses.com ip4:205.201.128.0/20 ip4:19... |
| 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://moodle.org
521 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://moodle.org | 200 | 521 ms | HTTP/1.1 | cloudflare |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencemoodle.org — via GoDaddy.com, LLC, 24 years, 4 months old, hosted on CloudflarePASS
656 days
April 2, 2028
49 days
Issued by Google Trust Services
24 years, 4 months
Registered April 2, 2002
Not enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
104.20.33.175
GoDaddy.com, LLC
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.
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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.
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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