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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
6
PASS
11
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
11 PASS 6 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.
C
Reverse DNS
Action
0/4 IPs match cert SAN
REVIEW
0/4 IPs match cert SAN
Info::
PTR lookup failed for 172.67.186.131: lookup 172.67.186.131: 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 104.21.19.147: lookup 104.21.19.147: 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 2606:4700:3032::6815:1393: lookup 2606:4700:3032::6815:1393: 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 2606:4700:3032::ac43:ba83: lookup 2606:4700:3032::ac43:ba83: 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
52 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

52
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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, 39 ms lookup
PASS
2 A records, 39 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.67.186.131, 104.21.19.147
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3032::6815:1393, 2606:4700:3032::ac43:ba83
Info::
2 nameserver(s) configured
Got: adam.ns.cloudflare.com, dina.ns.cloudflare.com
Info::
3 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 39 ms
Got: 39 ms
A172.67.186.131, 104.21.19.147
AAAA2606:4700:3032::6815:1393, 2606:4700:3032::ac43:ba83
CNAME—
NSadam.ns.cloudflare.com, dina.ns.cloudflare.com
MX
43 route1.mx.cloudflare.net
71 route3.mx.cloudflare.net
77 route2.mx.cloudflare.net
TXT
google-site-verification=7BScUBbD-fjGuyixVNRjTOgmoS5DYJuR4kB8y1HDfTo
SPF v=spf1 include:_spf.mx.cloudflare.net ~all
CAALookup not available with standard resolver
Resolved in 39 ms
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 19ms across 3 resolvers (spread 32ms)
PASS
Mean 19ms across 3 resolvers (spread 32ms)
Info::
Quad9: 1ms
Got: 1ms via 9.9.9.9:53
Info::
Cloudflare: 23ms
Got: 23ms via 1.1.1.1:53
Info::
Google: 33ms
Got: 33ms via 8.8.8.8:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://aicost.tools

https://aicost.tools

172 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://aicost.tools200172 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:3032::6815:1393, 2606:4700:3032::ac43:ba83
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:3032::6815:1393, 2606:4700:3032::ac43:ba83 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 1443 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
Sitemap index with 1 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1443 B Sitemaps referenced 1 User-agents *, GPTBot, ClaudeBot, Google-Extended, CCBot, PerplexityBot, anthropic-ai Blocking No — crawling allowed
User-agent: *
Allow: /

# Internal site search — never index
Disallow: /search/
Disallow: /search?
Disallow: /*?q=
Disallow: /*?query=

# API endpoints — not for users
Disallow: /api/
Disallow: /_api/

# Draft pages — quality gate failures land here
Disallow: /draft/

# Embeds — used as iframes elsewhere, not standalone pages
Disallow: /embed/

# Faceted filter combinations (any combination of 2+ filter params on listings)
Disallow: /*?*filter=*&*filter=*
Disallow: /*?*sort=*
Disallow: /*?*page=*&*filter=*

# Tracking params (already canonicalized but block crawl too)
Disallow: /*?utm_*
Disallow: /*?gclid=
Disallow: /*?fbclid=
Disallow: /*?mc_*

# Print/email-friendly versions (if generated)
Disallow: /*?print=
Disallow: /*?email=

# AMP/mobile variants (reserved, not used yet)
Disallow: /amp/

# Cloudflare admin / preview URLs
Disallow: /cdn-cgi/
Disallow: /__/preview/

# Sensitive system endpoints
Disallow: /admin/
Disallow: /.well-known/
Allow: /.well-known/security.txt
Allow: /.well-known/ai-plugin.json

# Sitemap location
Sitemap: https://aicost.tools/sitemap-index.xml

# Curated LLM-friendly site index
# https://aicost.tools/llms.txt

# AI training crawlers — explicit allow (citation-positive content strategy)
User-agent: GPTBot
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: CCBot
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: anthropic-ai
Allow: /
sitemap.xml 200 OK
Type Sitemap Index URLs 1 entries Valid XML Yes
Child Sitemaps:
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.aicost.tools/
200https://aicost.tools/

Preferred variant: non-www

HTTP → HTTPS

301http://aicost.tools/ → https://aicost.tools/

Consistent

A+
Domain Intelligence
aicost.tools — via Dynadot Inc, 5 months old
PASS
aicost.tools — via Dynadot Inc, 5 months old
Info::
Domain registered until May 17, 2027 (6 months remaining)
Info::
Domain is only 5 months 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 May 17, 2026
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: Dynadot Inc
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

202 days

May 17, 2027

SSL certificate

52 days

Issued by Google Trust Services

Domain age

5 months

Registered May 17, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3032::ac43:ba83

Registrar

Dynadot Inc

Unlocked 2 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
  • Newly registered domain — build backlinks and content to establish SEO trust
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Dynadot Inc
Created May 17, 2026 (5 months ago)
Expires May 17, 2027 (6 months)
Last Updated August 13, 2026
Name Servers dina.ns.cloudflare.com, adam.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3032::ac43:ba83
Data source: rdap (0.4s)

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.

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

Connection waterfall

DNS Lookup 44 ms TCP Connect 17 ms TLS Handshake 28 ms Server Processing 193 ms Content Transfer 1 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Document is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: a509eafacf766f07-CDG
Info::
CDN cache status: DYNAMIC
Document served via CDN: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a509eafacf766f07-CDG
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.

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