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 DNSAction0/4 IPs match cert SANREVIEW
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
HTTP → HTTPS
HTTP version does not redirect to HTTPS
BTLS Certificate Expiry & Recommendations41 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- 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
BOperational Status PageNo status page link detectedREVIEW
ADNS Records2 A records, 20 ms lookupPASS
| A | 104.16.231.132, 104.16.230.132 |
| AAAA | 2606:4700::6810:e684, 2606:4700::6810:e784 |
| CNAME | — |
| NS | — |
| MX | — |
| TXT | — |
| CAA | Lookup not available with standard resolver |
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.
Learn more ▾ ▴
SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.
Source: RFC 7208 (SPF)
A+Subdomain TakeoverNo subdomain takeover risk detectedPASS
A+Multi-Resolver DNS SpeedMean 6ms across 3 resolvers (spread 8ms)PASS
A+Redirect ChainNo redirects — direct accessPASS
https://though-threatened-trains-station...
172 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://though-threatened-trains-station... | 200 | 172 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (2 ms)PASS
ACrawlabilityno robots.txt, sitemap with 1 URLsPASS
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
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
A+HTTP Probe TimingTotal 366 ms — DNS, TCP, TLS, TTFB, content transfer breakdownPASS
Connection waterfall
ACDN & DeliveryCloudflare (DYNAMIC)PASS
A+CDN Cache ObservabilityCache state: DYNAMICPASS
A+Health Check EndpointHealth endpoint at https://though-threatened-trains-station.trycloudflare.com/status (HTTP 200)PASS
Domain IntelligenceDomain intelligence data not availableINFO
RDAP and WHOIS lookup both failed