Skip to content
https://adamnordling.se

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
5
PASS
11
INFO
0
Probed from Sao Paulo, Brazil
200 OK
Checks
17
11 PASS 5 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: 2606:4700:3030::ac43:c7ed, 2606:4700:3034::6815:4a41
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700:3030::ac43:c7ed]:443: connect: no route to host
IPv6 Misconfigured
AAAA Records 2606:4700:3030::ac43:c7ed, 2606:4700:3034::6815:4a41 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 104.21.74.65: lookup 104.21.74.65: 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 172.67.199.237: lookup 172.67.199.237: 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 2606:4700:3030::ac43:c7ed: lookup 2606:4700:3030::ac43:c7ed: 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::6815:4a41: lookup 2606:4700:3034::6815:4a41: 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
Multi-Resolver DNS Speed
Mean 45ms across 3 resolvers (spread 117ms)
REVIEW
Mean 45ms across 3 resolvers (spread 117ms)
Info::
Cloudflare: 3ms
Got: 3ms via 1.1.1.1:53
Info::
Google: 13ms
Got: 13ms via 8.8.8.8:53
Info::
Quad9: 120ms
Got: 120ms via 9.9.9.9:53
B
TLS Certificate Expiry & Recommendations
70 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

70
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • 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, 14 ms lookup
PASS
2 A records, 14 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.21.74.65, 172.67.199.237
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3030::ac43:c7ed, 2606:4700:3034::6815:4a41
Info::
2 nameserver(s) configured
Got: arely.ns.cloudflare.com, leonard.ns.cloudflare.com
Info::
No MX records — email not configured via DNS
Info::
SPF record present in TXT
Info::
DNS resolution time: 14 ms
Got: 14 ms
A104.21.74.65, 172.67.199.237
AAAA2606:4700:3030::ac43:c7ed, 2606:4700:3034::6815:4a41
CNAME—
NSarely.ns.cloudflare.com, leonard.ns.cloudflare.com
MX—
TXT
SPF v=spf1 -all
google-site-verification=gTQrzzuuje5-RZY3P6XVo9SOJO9A_HcoEN2OvZVAeuE
CAALookup not available with standard resolver
Resolved in 14 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, sectigo.com, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com
PASS
issue: comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com
Info::
CAA issue tag present — authorized CA(s): comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com
Info::
No CAA iodef tag — won't be notified of failed issuance attempts
Add `0 iodef "mailto:security@example.com"` to receive notifications when a CA refuses issuance because it doesn't match your CAA policy. Useful signal for detecting issuance attempts by unauthorized CAs.
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://adamnordling.se

https://adamnordling.se

228 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://adamnordling.se200228 msHTTP/1.1cloudflare
A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 68 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 68 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /

Sitemap: https://adamnordling.se/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 1 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 redirects to HTTPS permanently
Got: HTTP 301

www / non-www

301https://www.adamnordling.se/
200https://adamnordling.se/

Preferred variant: non-www

HTTP → HTTPS

301http://adamnordling.se/ → https://adamnordling.se/

Consistent

A+
Domain Intelligence
adamnordling.se — via Loopia AB, 19 days old
PASS
adamnordling.se — via Loopia AB, 19 days old
Info::
Domain registered until Sep 19, 2027 (11 months remaining)
Info::
Domain is only 19 days old
Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.
Got: Registered Sep 19, 2026
Info::
Registrar: Loopia AB
Warning::
Registrar lock is NOT enabled
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.
Domain expiry

335 days

September 19, 2027

SSL certificate

70 days

Issued by Google Trust Services

Domain age

19 days

Registered September 19, 2026

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3030::ac43:c7ed

Registrar

Loopia AB

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Newly registered domain — build backlinks and content to establish SEO trust
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Loopia AB
Created September 19, 2026 (19 days ago)
Expires September 19, 2027 (11 months)
Last Updated October 8, 2026
Name Servers leonard.ns.cloudflare.com, arely.ns.cloudflare.com
Registrant (not shown)
Hosting
IP Address 2606:4700:3030::ac43:c7ed
Data source: whois (1.3s)

Newly registered domains may face SEO trust challenges. Search engines generally give more authority to older domains. This is informational — not a problem to fix.

Why this matters

Informational: domain age. Newer domains may have lower trust signals in spam/security filters.

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.

Why this matters

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

A+
HTTP Probe Timing
Total 268 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
11 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.
15 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
267 ms
Total Time Total request time from DNS lookup through full response.
268 ms

Connection waterfall

DNS Lookup 11 ms TCP Connect 2 ms TLS Handshake 15 ms Server Processing 238 ms Content Transfer 2 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Document is served via Cloudflare CDN (edge: GRU)
Got: cf-ray: a4762491ae8dcccb-GRU
Info::
CDN cache status: DYNAMIC
Document served via CDN: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a4762491ae8dcccb-GRU
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
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback