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https://grok.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Singapore, Singapore
403 Forbidden
Checks
9
6 PASS 3 REVIEW
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
59 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

59
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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: SIN)
Got: cf-ray: 9efe86943d62fd97-SIN
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9efe86943d62fd97-SIN
A+
DNS Records
2 A records, 4 ms lookup
PASS
2 A records, 4 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.18.28.234, 104.18.29.234
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700::6812:1dea, 2606:4700::6812:1cea
Info::
2 nameserver(s) configured
Got: robin.ns.cloudflare.com, cartman.ns.cloudflare.com
Info::
1 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
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: 4 ms
Got: 4 ms
A104.18.28.234, 104.18.29.234
AAAA2606:4700::6812:1dea, 2606:4700::6812:1cea
CNAME
NSrobin.ns.cloudflare.com, cartman.ns.cloudflare.com
MX
1 smtp.google.com
TXT
google-gws-recovery-domain-verification=68908035
google-site-verification=LUrbvedWB08Lr6Eo7bSkjmxhFbMA73AEPUICgtIay4o
google-site-verification=N5d00H9pSs2bM_8iBn_HE0dphOgKgEM482P9kFDw7vA
google-site-verification=dCnWUzaCYYMvk2nroNDkzoOBvFbIxvv-9oXpJJwu7JE
google-site-verification=xk73X0o9k-eoZFSzC1ZYHstsPe6vzhNjdduqD_c48f4
tiktok-developers-site-verification=t1AQw6I3nx1EagxdItHwZrz3wMgS5sCZ
CAALookup not available with standard resolver
Resolved in 4 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

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+
Redirect Chain
0 redirect(s), 16 ms total
PASS
0 redirect(s), 16 ms total

https://grok.com

16 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://grok.com40316 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2606:4700::6812:1dea, 2606:4700::6812:1cea
Got: 1 ms connect
IPv6 Ready
AAAA Records 2606:4700::6812:1dea, 2606:4700::6812:1cea Connection Reachable (1 ms)
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.grok.com/
200https://grok.com/

Preferred variant: non-www

HTTP → HTTPS

301http://grok.com/ https://grok.com/

Consistent

A+
Domain Intelligence
grok.com — via Cloudflare, Inc., 32 years, 4 months old
PASS
grok.com — via Cloudflare, Inc., 32 years, 4 months old
Info::
Domain registered until May 20, 2034 (8 years, 2 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: Cloudflare, 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

2867 days

May 20, 2034

SSL certificate

59 days

Issued by Google Trust Services

Domain age

32 years, 4 months

Registered May 19, 1994

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700::6812:1cea

Registrar

Cloudflare, Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Cloudflare, Inc.
Created May 19, 1994 (32 years, 4 months ago)
Expires May 20, 2034 (8 years, 2 months)
Last Updated December 16, 2024
Name Servers cartman.ns.cloudflare.com, robin.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 2606:4700::6812:1cea
Data source: rdap (0.5s)

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

Connection waterfall

DNS Lookup 2 ms TCP Connect 1 ms TLS Handshake 6 ms Server Processing 5 ms Content Transfer 0 ms
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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