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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
0
REVIEW
7
PASS
10
INFO
0
Probed from Sao Paulo, Brazil
403 Forbidden
Checks
17
10 PASS 7 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 172.67.217.17: lookup 172.67.217.17: 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 104.21.38.15: lookup 104.21.38.15: 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::ac43:d911: lookup 2606:4700:3034::ac43:d911: 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::6815:260f: lookup 2606:4700:3032::6815:260f: 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.
C
Multi-Resolver DNS Speed
Action
Mean 120ms across 3 resolvers (spread 223ms)
REVIEW
Mean 120ms across 3 resolvers (spread 223ms)
Info::
Cloudflare: 1ms
Got: 1ms via 1.1.1.1:53
Info::
Google: 135ms
Got: 135ms via 8.8.8.8:53
Info::
Quad9: 224ms
Got: 224ms via 9.9.9.9:53
Info::
High latency spread between resolvers: 223ms (min 1ms / max 224ms)
Wide gap between the fastest and slowest public resolver suggests a geographic anycast issue or an authoritative-server cache problem. Users in different regions will see materially different DNS times.
B
Crawlability
no robots.txt, no sitemap
REVIEW
no robots.txt, no sitemap
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.

Learn more

A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.

Source: robotstxt.org

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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

Certificate validity

76
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.
A
DNS Records
2 A records, 10 ms lookup
PASS
2 A records, 10 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.67.217.17, 104.21.38.15
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3034::ac43:d911, 2606:4700:3032::6815:260f
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: 10 ms
Got: 10 ms
A172.67.217.17, 104.21.38.15
AAAA2606:4700:3034::ac43:d911, 2606:4700:3032::6815:260f
CNAME
NS
MX
TXT
CAALookup not available with standard resolver
Resolved in 10 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+
Redirect Chain
0 redirect(s), 32 ms total
PASS
0 redirect(s), 32 ms total

https://www.skillchirp.com/battles

32 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.skillchirp.com/battles40332 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2606:4700:3034::ac43:d911, 2606:4700:3032::6815:260f
Got: 1 ms connect
IPv6 Ready
AAAA Records 2606:4700:3034::ac43:d911, 2606:4700:3032::6815:260f Connection Reachable (1 ms)
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly redirects to HTTPS permanently
Got: HTTP 308

www / non-www

200https://www.skillchirp.com/battles
307https://skillchirp.com/battles

Trailing Slash

403https://www.skillchirp.com/battles/
200https://www.skillchirp.com/battles

HTTP → HTTPS

308http://www.skillchirp.com/battles https://www.skillchirp.com/battles

Consistent

A+
Domain Intelligence
skillchirp.com — via IONOS SE, 1 years, 2 months old
PASS
skillchirp.com — via IONOS SE, 1 years, 2 months old
Info::
Domain registered until Jun 24, 2027 (10 months 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: IONOS SE
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

301 days

June 24, 2027

SSL certificate

76 days

Issued by Google Trust Services

Domain age

1 years, 2 months

Registered June 24, 2025

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3032::6815:260f

Registrar

IONOS SE

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
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar IONOS SE
Created June 24, 2025 (1 years, 2 months ago)
Expires June 24, 2027 (10 months)
Last Updated June 25, 2026
Name Servers cris.ns.cloudflare.com, karsyn.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3032::6815:260f
Data source: rdap (0.4s)

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 31 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
5 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.
11 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
31 ms
Total Time Total request time from DNS lookup through full response.
32 ms

Connection waterfall

DNS Lookup 5 ms TCP Connect 2 ms TLS Handshake 11 ms Server Processing 14 ms Content Transfer 1 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: GRU)
Got: cf-ray: a312df415f9e4051-GRU
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a312df415f9e4051-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
A+
Health Check Endpoint
Auth-protected health endpoint at https://www.skillchirp.com/health (HTTP 403)
PASS
Auth-protected health endpoint at https://www.skillchirp.com/health (HTTP 403)
Info::
Auth-protected health endpoint exposed at https://www.skillchirp.com/health
Got: https://www.skillchirp.com/health
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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