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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
72
GRADE
C
FIX
3
REVIEW
9
PASS
4
INFO
1
Probed from Singapore, Singapore
200 OK
Checks
17
4 PASS 9 REVIEW 3 FIX
F
Multi-Resolver DNS Speed
Action
All public resolvers failed to resolve the domain
FIX
All public resolvers failed to resolve the domain
Critical::
DNS resolution failed against all public resolvers
1.1.1.1, 8.8.8.8, and 9.9.9.9 all failed to resolve this domain. Almost always means the domain is delegated incorrectly, the authoritative servers are unreachable, or the resolution returned NXDOMAIN/SERVFAIL across the board.
F
HTTP Probe Timing
Action
Total 8314 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
FIX
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
164 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
161 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
169 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
5.46 s
Total Time Total request time from DNS lookup through full response.
8.31 s

Connection waterfall

DNS Lookup 164 ms TCP Connect 161 ms TLS Handshake 169 ms Server Processing 4.96 s Content Transfer 2.86 s
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
DNSSEC
Action
DNSSEC posture not checked
REVIEW
DNSSEC posture not checked
Info::
DNSSEC posture not checked
Could not query the validating resolver for DNSSEC status. Network or resolver outage.
C
CAA Records
Action
CAA posture not checked
REVIEW
CAA posture not checked
Info::
CAA records not checked
Could not query the resolver for CAA records. Network or resolver outage.
B
Reverse DNS
0/1 IPs match cert SAN
REVIEW
0/1 IPs match cert SAN
Info::
PTR for 187.127.86.60 does not match any cert SAN: srv1853690.hstgr.cloud
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 0 Expected: 301 redirect to HTTPS

www / non-www

200https://www.happygang.org/
https://happygang.org/

HTTP → HTTPS

http://www.happygang.org/

HTTP version does not redirect to HTTPS

B
TLS Certificate Expiry & Recommendations
84 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

84
days left
0d 30d 60d 90d+

Recommended actions

  • 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
B
CDN Cache Observability
No CDN cache-status headers in the response
REVIEW
No CDN cache-status headers in the response
Info::
No CDN cache-status headers in the response
Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.
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: connection error, /health: connection error, /healthz: connection error, /ping: connection error, /status: connection error.
A
DNS Records
1 A records, 182 ms lookup
PASS
1 A records, 182 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 187.127.86.60
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 182 ms
Got: 182 ms
A187.127.86.60
AAAA—
CNAME—
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 182 ms

Multiple A records provide failover if one server goes down.

Why this matters

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

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

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 Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://www.happygang.org

https://www.happygang.org

3403 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.happygang.org2003403 msHTTP/1.1nginx/1.29.8
A+
Crawlability
robots.txt present, sitemap with 11 URLs
PASS
robots.txt present, sitemap with 11 URLs
Info::
robots.txt is present
Got: 103 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 11 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 103 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-Agent: *
Allow: /

Host: https://www.happygang.org
Sitemap: https://www.happygang.org/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 11 entries Valid XML Yes
Sample URLs:
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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