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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
1
REVIEW
4
PASS
11
INFO
1
Probed from New York, United Stated
200 OK
Checks
17
11 PASS 4 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2606:4700:3034::6815:5ea5, 2606:4700:3036::ac43:8a15
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700:3034::6815:5ea5]:443: connect: no route to host
IPv6 Misconfigured
AAAA Records 2606:4700:3034::6815:5ea5, 2606:4700:3036::ac43:8a15 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

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)

C
Reverse DNS
Action
0/4 IPs match cert SAN
REVIEW
0/4 IPs match cert SAN
Info::
PTR lookup failed for 104.21.94.165: lookup 104.21.94.165: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 172.67.138.21: lookup 172.67.138.21: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:3034::6815:5ea5: lookup 2606:4700:3034::6815:5ea5: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:3036::ac43:8a15: lookup 2606:4700:3036::ac43:8a15: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
B
TLS Certificate Expiry & Recommendations
61 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

61
days left
0d 30d 60d 90d+

Recommended actions

  • 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
B
Operational Status Page
No status page link detected
REVIEW
No status page link detected
Info::
No operational status page link detected
Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.
B
Health Check Endpoint
No conventional health endpoint found
REVIEW
No conventional health endpoint found
Info::
No conventional health endpoint found
Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.
A+
DNS Records
2 A records, 44 ms lookup
PASS
2 A records, 44 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.21.94.165, 172.67.138.21
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3034::6815:5ea5, 2606:4700:3036::ac43:8a15
Info::
2 nameserver(s) configured
Got: gordon.ns.cloudflare.com, melinda.ns.cloudflare.com
Info::
2 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 44 ms
Got: 44 ms
A104.21.94.165, 172.67.138.21
AAAA2606:4700:3034::6815:5ea5, 2606:4700:3036::ac43:8a15
CNAME—
NSgordon.ns.cloudflare.com, melinda.ns.cloudflare.com
MX
10 mx2.mail.hostpoint.ch
10 mx1.mail.hostpoint.ch
TXT
SPF v=spf1 redirect=spf.mail.hostpoint.ch
google-site-verification=SKKr4tXRLk9N9r_iZn5nBgrMFtKkOKPWVIx0rZ5XpEE
gridinsoft-verify=z1znke9ruiq9d637ahpb0xc14hruh9onsycn0xfrhlsl6465iwbf8csdujch8e...
CAALookup not available with standard resolver
Resolved in 44 ms
A+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
DNSSEC
Signed and validating
PASS
Signed and validating
Info::
DNSSEC fully signed and chain validates (ECDSAP256SHA256)
A+
CAA Records
issue: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | iodef configured
PASS
issue: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | iodef configured
Info::
CAA issue tag present — authorized CA(s): comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com
Info::
CAA iodef tag present (failed-issuance notifications enabled)
A+
Multi-Resolver DNS Speed
Mean 14ms across 3 resolvers (spread 21ms)
PASS
Mean 14ms across 3 resolvers (spread 21ms)
Info::
Cloudflare: 2ms
Got: 2ms via 1.1.1.1:53
Info::
Google: 19ms
Got: 19ms via 8.8.8.8:53
Info::
Quad9: 23ms
Got: 23ms via 9.9.9.9:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://admintoolkit.io

https://admintoolkit.io

370 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://admintoolkit.io200370 msHTTP/1.1cloudflare
A+
Crawlability
robots.txt present, sitemap with 104 URLs
PASS
robots.txt present, sitemap with 104 URLs
Info::
robots.txt is present
Got: 177 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 104 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 177 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
# robots.txt for admintoolkit.io
User-agent: *
Allow: /
Disallow: /cdn-cgi/

Content-Signal: ai-train=no, search=yes, ai-input=yes

Sitemap: https://admintoolkit.io/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 104 entries Valid XML Yes
Sample URLs:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.admintoolkit.io/
200https://admintoolkit.io/

Preferred variant: non-www

HTTP → HTTPS

301http://admintoolkit.io/ → https://admintoolkit.io/

Consistent

A
HTTP Probe Timing
Total 466 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
20 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
2 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
12 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
367 ms
Total Time Total request time from DNS lookup through full response.
467 ms

Connection waterfall

DNS Lookup 20 ms TCP Connect 2 ms TLS Handshake 12 ms Server Processing 332 ms Content Transfer 100 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: EWR)
Got: cf-ray: a22698459bee8110-EWR
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a22698459bee8110-EWR
A+
CDN Cache Observability
Cache state: DYNAMIC
PASS
Cache state: DYNAMIC
Info::
CDN cache state observable via 1 header(s)
Got: cf-cache-status=DYNAMIC
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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