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https://theseocover.com

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
6
PASS
10
INFO
0
Probed from Sao Paulo, Brazil
200 OK
Checks
17
10 PASS 6 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2606:4700:3031::6815:3fe0, 2606:4700:3030::ac43:ac59
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700:3031::6815:3fe0]:443: connect: no route to host
IPv6 Misconfigured
AAAA Records 2606:4700:3031::6815:3fe0, 2606:4700:3030::ac43:ac59 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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 104.21.63.224: lookup 104.21.63.224: 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 172.67.172.89: lookup 172.67.172.89: 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 2606:4700:3031::6815:3fe0: lookup 2606:4700:3031::6815:3fe0: 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 2606:4700:3030::ac43:ac59: lookup 2606:4700:3030::ac43:ac59: 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
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

301https://www.theseocover.com/
200https://theseocover.com/

Preferred variant: non-www

HTTP → HTTPS

200http://theseocover.com/

HTTP version does not redirect to HTTPS

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

Certificate validity

32
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
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, 29 ms lookup
PASS
2 A records, 29 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.21.63.224, 172.67.172.89
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3031::6815:3fe0, 2606:4700:3030::ac43:ac59
Info::
2 nameserver(s) configured
Got: drew.ns.cloudflare.com, jillian.ns.cloudflare.com
Info::
2 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 29 ms
Got: 29 ms
A104.21.63.224, 172.67.172.89
AAAA2606:4700:3031::6815:3fe0, 2606:4700:3030::ac43:ac59
CNAME—
NSdrew.ns.cloudflare.com, jillian.ns.cloudflare.com
MX
10 mx01.ionos.com
10 mx00.ionos.com
TXT
google-site-verification=cLOj0sQMxytmWl1mT0XnQpYjr8igOqtIqfxX4vBRnbI
SPF v=spf1 include:_spf-us.ionos.com ~all
CAALookup not available with standard resolver
Resolved in 29 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 10ms across 3 resolvers (spread 14ms)
PASS
Mean 10ms across 3 resolvers (spread 14ms)
Info::
Cloudflare: 3ms
Got: 3ms via 1.1.1.1:53
Info::
Quad9: 10ms
Got: 10ms via 9.9.9.9:53
Info::
Google: 17ms
Got: 17ms 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://theseocover.com

https://theseocover.com

98 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://theseocover.com20098 msHTTP/1.1cloudflare
A+
Crawlability
robots.txt present, sitemap with 526 URLs
PASS
robots.txt present, sitemap with 526 URLs
Info::
robots.txt is present
Got: 762 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 526 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 762 B Sitemaps referenced 1 User-agents PerplexityBot, CCBot, GPTBot, ClaudeBot, anthropic-ai, Applebot-Extended, *, ChatGPT-User, Google-Extended Blocking No — crawling allowed
# robots.txt for The SEO Cover
# Updated at build time. AI training crawlers are allowed — this site
# is a curated public index intended for both human and machine readers.

User-agent: *
Allow: /
# Cover Admin — operator backend, not content
Disallow: /admin

# Major AI crawlers — explicitly allowed
User-agent: GPTBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: anthropic-ai
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: CCBot
Allow: /

User-agent: Applebot-Extended
Allow: /

Sitemap: https://theseocover.com/sitemap.xml

# For LLM-friendly content summaries
# https://llmstxt.org
# https://theseocover.com/llms.txt
# https://theseocover.com/llms-full.txt
sitemap.xml 200 OK
Type URL Set URLs 526 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
theseocover.com — via IONOS SE, 5 years, 6 months old
PASS
theseocover.com — via IONOS SE, 5 years, 6 months old
Info::
Domain registered until Mar 31, 2027 (6 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

189 days

March 31, 2027

SSL certificate

32 days

Issued by Google Trust Services

Domain age

5 years, 6 months

Registered March 31, 2021

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3030::ac43:ac59

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 March 31, 2021 (5 years, 6 months ago)
Expires March 31, 2027 (6 months)
Last Updated May 28, 2026
Name Servers drew.ns.cloudflare.com, jillian.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3030::ac43:ac59
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 412 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
186 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.
16 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
404 ms
Total Time Total request time from DNS lookup through full response.
412 ms

Connection waterfall

DNS Lookup 186 ms TCP Connect 2 ms TLS Handshake 16 ms Server Processing 201 ms Content Transfer 8 ms
A
CDN & Delivery
Cloudflare (MISS)
PASS
Cloudflare (MISS)
Info::
Document is served via Cloudflare CDN (edge: GRU)
Got: cf-ray: a3f1e576583f9615-GRU
Info::
CDN cache status: MISS
Document served via CDN: Cloudflare
Provider Cloudflare Cache Status MISS Evidence cf-ray: a3f1e576583f9615-GRU
A+
CDN Cache Observability
Cache state: MISS
PASS
Cache state: MISS
Info::
CDN cache state observable via 1 header(s)
Got: cf-cache-status=MISS
A+
Health Check Endpoint
Health endpoint at https://theseocover.com/health (HTTP 200)
PASS
Health endpoint at https://theseocover.com/health (HTTP 200)
Info::
Public health endpoint at https://theseocover.com/health
Got: https://theseocover.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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