Infrastructure
· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BDNSSECUnsigned (DNSSEC not deployed)REVIEW
BCAA RecordsNo CAA records (any CA may issue certificates)REVIEW
CReverse DNSAction0/1 IPs match cert SANREVIEW
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BTLS Certificate Expiry & Recommendations49 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
BOperational Status PageNo status page link detectedREVIEW
BHealth Check EndpointNo conventional health endpoint foundREVIEW
ADNS Records1 A records, 53 ms lookupPASS
| A | 172.66.0.70 |
| AAAA | — |
| CNAME | amadohastaelextremo.es |
| NS | ns2.dondominio.com, ns1.dondominio.com |
| MX | — |
| TXT | SPF v=spf1 include:spf.dondominio.com google-site-verification=Myhk9FY4c49vkiY3ZCeVYMtm2tfMi1HvpHOPNYL4dM4 |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.
Learn more ▾ ▴
RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.
Source: RFC 1034
A+Subdomain TakeoverNo subdomain takeover risk detectedPASS
A+Multi-Resolver DNS SpeedMean 24ms across 3 resolvers (spread 36ms)PASS
A+Redirect ChainNo redirects — direct accessPASS
https://www.amadohastaelextremo.es
330 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://www.amadohastaelextremo.es | 200 | 330 ms | HTTP/1.1 | cloudflare |
A+Crawlabilityrobots.txt present, sitemap with 1 URLsPASS
User-agent: *
Allow: /
Sitemap: https://www.amadohastaelextremo.es/sitemap.xml
- https://www.amadohastaelextremo.es
- https://www.amadohastaelextremo.es/assets/images/image01.png
- https://www.amadohastaelextremo.es/assets/images/slideshow01-cc69faf3.jpg
- https://www.amadohastaelextremo.es/assets/images/slideshow01-b8046848.jpg
- https://www.amadohastaelextremo.es/assets/images/slideshow01-a27431a0.jpg
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: www
HTTP → HTTPS
Consistent
AHTTP Probe TimingTotal 584 ms — DNS, TCP, TLS, TTFB, content transfer breakdownPASS
Connection waterfall
ACDN & DeliveryDocument and assets on CloudflarePASS
Asset hosts on a CDN
- res.cloudinary.com — Cloudflare · assets: 4
Other asset hosts
- fonts.googleapis.com — assets: 2 · below probe threshold
A+CDN Cache ObservabilityCache state: DYNAMICPASS
Domain IntelligenceDomain intelligence data not availableINFO
RDAP and WHOIS lookup both failed