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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
8
PASS
9
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
9 PASS 8 REVIEW
B
DNSSEC
Unsigned (DNSSEC not deployed)
REVIEW
Unsigned (DNSSEC not deployed)
Info::
DNSSEC is not deployed
The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).
B
CAA Records
No CAA records (any CA may issue certificates)
REVIEW
No CAA records (any CA may issue certificates)
Info::
No CAA records published
Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.
B
Reverse DNS
0/2 IPs match cert SAN
REVIEW
0/2 IPs match cert SAN
Info::
PTR for 63.176.8.218 does not match any cert SAN: ec2-63-176-8-218.eu-central-1.compute.amazonaws.com
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.
Info::
PTR for 35.157.26.135 does not match any cert SAN: ec2-35-157-26-135.eu-central-1.compute.amazonaws.com
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
TLS Certificate Expiry & Recommendations
77 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

77
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • 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 & Delivery
Netlify
REVIEW
Netlify
Info::
Site is served via Netlify CDN
Got: x-nf-request-id: 01KR8YHQSZV7HDGMBZ1JNB8QVM
CDN Detected: Netlify
Provider Netlify Evidence x-nf-request-id: 01KR8YHQSZV7HDGMBZ1JNB8QVM
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, 33 ms lookup
PASS
2 A records, 33 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 63.176.8.218, 35.157.26.135
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: dns3.p01.nsone.net, dns2.p01.nsone.net, dns1.p01.nsone.net, dns4.p01.nsone.net
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: 33 ms
Got: 33 ms
A63.176.8.218, 35.157.26.135
AAAA—
CNAME—
NSdns3.p01.nsone.net, dns2.p01.nsone.net, dns1.p01.nsone.net, dns4.p01.nsone.net
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 33 ms

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+
Multi-Resolver DNS Speed
Mean 42ms across 3 resolvers (spread 43ms)
PASS
Mean 42ms across 3 resolvers (spread 43ms)
Info::
Google: 26ms
Got: 26ms via 8.8.8.8:53
Info::
Cloudflare: 33ms
Got: 33ms via 1.1.1.1:53
Info::
Quad9: 69ms
Got: 69ms 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://hannahseo.com

https://hannahseo.com

101 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://hannahseo.com200101 msHTTP/1.1Netlify
A+
Crawlability
robots.txt present, sitemap with 8 URLs
PASS
robots.txt present, sitemap with 8 URLs
Info::
robots.txt is present
Got: 121 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 8 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 121 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
# ♡ヾ(´｡• ◡ •｡`)ツ 
# calvin wuz here

User-agent: *
Allow: /

Sitemap: https://hannahseo.com/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 8 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.hannahseo.com/
200https://hannahseo.com/

Preferred variant: non-www

HTTP → HTTPS

301http://hannahseo.com/ → https://hannahseo.com/

Consistent

A+
Domain Intelligence
hannahseo.com — via Porkbun LLC, 6 years old, hosted on AWS
PASS
hannahseo.com — via Porkbun LLC, 6 years old, hosted on AWS
Info::
Domain registered until May 13, 2027 (1 years remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Porkbun LLC
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.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

351 days

May 13, 2027

SSL certificate

77 days

Issued by Let's Encrypt

Domain age

6 years

Registered May 13, 2020

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

63.176.8.218

Registrar

Porkbun LLC

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Porkbun LLC
Created May 13, 2020 (6 years ago)
Expires May 13, 2027 (1 years)
Last Updated April 2, 2026
Name Servers dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
DNSSEC Not enabled
Hosting
IP Address 63.176.8.218
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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 417 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
37 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
34 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
149 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
417 ms
Total Time Total request time from DNS lookup through full response.
418 ms

Connection waterfall

DNS Lookup 37 ms TCP Connect 34 ms TLS Handshake 149 ms Server Processing 198 ms Content Transfer 0 ms
A+
CDN Cache Observability
Cache state: fresh (Age=0)
PASS
Cache state: fresh (Age=0)
Info::
CDN cache state observable via 1 header(s)
Got: age=0
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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