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https://ailearnhub.net

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
7
PASS
9
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
9 PASS 7 REVIEW 1 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

200https://www.ailearnhub.net/
200https://ailearnhub.net/

Inconsistent — duplicate content risk

HTTP → HTTPS

200http://ailearnhub.net/

HTTP version does not redirect to HTTPS

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 188.114.96.2: lookup 188.114.96.2: 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 188.114.97.2: lookup 188.114.97.2: 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 2a06:98c1:3120::2: lookup 2a06:98c1:3120::2: 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 2a06:98c1:3121::2: lookup 2a06:98c1:3121::2: 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
69 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

69
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
CDN & Delivery
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: a3147c4b4d62998c-CDG
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: a3147c4b4d62998c-CDG
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.
A+
DNS Records
2 A records, 114 ms lookup
PASS
2 A records, 114 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 188.114.96.2, 188.114.97.2
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a06:98c1:3120::2, 2a06:98c1:3121::2
Info::
2 nameserver(s) configured
Got: lindsey.ns.cloudflare.com, syeef.ns.cloudflare.com
Info::
3 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 114 ms
Got: 114 ms
A188.114.96.2, 188.114.97.2
AAAA2a06:98c1:3120::2, 2a06:98c1:3121::2
CNAME—
NSlindsey.ns.cloudflare.com, syeef.ns.cloudflare.com
MX
81 route2.mx.cloudflare.net
82 route3.mx.cloudflare.net
87 route1.mx.cloudflare.net
TXT
google-site-verification=DNB5vssG7JW2dfz_CS6oQZCSWI-Lf__MEIdf1zX3M0U
SPF v=spf1 include:_spf.mx.cloudflare.net ~all
CAALookup not available with standard resolver
Resolved in 114 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 38ms across 3 resolvers (spread 27ms)
PASS
Mean 38ms across 3 resolvers (spread 27ms)
Info::
Google: 28ms
Got: 28ms via 8.8.8.8:53
Info::
Cloudflare: 33ms
Got: 33ms via 1.1.1.1:53
Info::
Quad9: 55ms
Got: 55ms 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://ailearnhub.net

https://ailearnhub.net

499 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ailearnhub.net200499 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2a06:98c1:3120::2, 2a06:98c1:3121::2
Got: 17 ms connect
IPv6 Ready
AAAA Records 2a06:98c1:3120::2, 2a06:98c1:3121::2 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 257 URLs
PASS
robots.txt present, sitemap with 257 URLs
Info::
robots.txt is present
Got: 266 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 257 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 266 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-Agent: *
Allow: /
Disallow: /api/
Disallow: /admin/
Disallow: /checkout/
Disallow: /billing/
Disallow: /dash/
Disallow: /classroom/
Disallow: /tutor/
Disallow: /generation-preview/
Disallow: /login/
Disallow: /auth/

Sitemap: https://ailearnhub.net/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 257 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
ailearnhub.net — via NameCheap, Inc., 4 months old
PASS
ailearnhub.net — via NameCheap, Inc., 4 months old
Info::
Domain registered until Apr 10, 2027 (7 months remaining)
Info::
Domain is only 4 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 Apr 10, 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: NameCheap, 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

226 days

April 10, 2027

SSL certificate

69 days

Issued by Google Trust Services

Domain age

4 months

Registered April 10, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2a06:98c1:3121::2

Registrar

NameCheap, 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 NameCheap, Inc.
Created April 10, 2026 (4 months ago)
Expires April 10, 2027 (7 months)
Last Updated April 10, 2026
Name Servers lindsey.ns.cloudflare.com, syeef.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2a06:98c1:3121::2
Data source: rdap (0.2s)

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

Connection waterfall

DNS Lookup 34 ms TCP Connect 16 ms TLS Handshake 24 ms Server Processing 399 ms Content Transfer 42 ms
A+
Health Check Endpoint
Health endpoint at https://ailearnhub.net/api/health (HTTP 200)
PASS
Health endpoint at https://ailearnhub.net/api/health (HTTP 200)
Info::
Public health endpoint at https://ailearnhub.net/api/health
Got: https://ailearnhub.net/api/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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