Skip to content
https://www.supportkori.com

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
5
PASS
11
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
11 PASS 5 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: 2606:4700:3037::6815:424e, 2606:4700:3032::ac43:9d82
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700:3037::6815:424e]:443: i/o timeout
IPv6 Misconfigured
AAAA Records 2606:4700:3037::6815:424e, 2606:4700:3032::ac43:9d82 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 172.67.157.130: lookup 172.67.157.130: 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 104.21.66.78: lookup 104.21.66.78: 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 2606:4700:3037::6815:424e: lookup 2606:4700:3037::6815:424e: 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::ac43:9d82: lookup 2606:4700:3032::ac43:9d82: 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
79 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

79
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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, 38 ms lookup
PASS
2 A records, 38 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.67.157.130, 104.21.66.78
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3037::6815:424e, 2606:4700:3032::ac43:9d82
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: 38 ms
Got: 38 ms
A172.67.157.130, 104.21.66.78
AAAA2606:4700:3037::6815:424e, 2606:4700:3032::ac43:9d82
CNAME
NS
MX
TXT
CAALookup not available with standard resolver
Resolved in 38 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+
Multi-Resolver DNS Speed
Mean 17ms across 3 resolvers (spread 26ms)
PASS
Mean 17ms across 3 resolvers (spread 26ms)
Info::
Quad9: 1ms
Got: 1ms via 9.9.9.9:53
Info::
Cloudflare: 24ms
Got: 24ms via 1.1.1.1:53
Info::
Google: 27ms
Got: 27ms 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://www.supportkori.com

https://www.supportkori.com

159 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.supportkori.com200159 msHTTP/1.1cloudflare
A+
Crawlability
robots.txt present, sitemap with 11 URLs
PASS
robots.txt present, sitemap with 11 URLs
Info::
robots.txt is present
Got: 1982 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 11 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1982 B Sitemaps referenced 1 User-agents *, Amazonbot, Applebot-Extended, Bytespider, GPTBot, CCBot, ClaudeBot, CloudflareBrowserRenderingCrawler, Google-Extended, meta-externalagent Blocking No — crawling allowed
# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search does not
#           include providing AI-generated search summaries.
# ai-input: inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content for
#           generative AI search answers).
# ai-train: training or fine-tuning AI models.
# use:      how AI systems may consume the content (immediate, reference, or full).

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

# BEGIN Cloudflare Managed content

User-agent: *
Content-Signal: search=yes,ai-train=no,use=reference
Allow: /

User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: CloudflareBrowserRenderingCrawler
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: meta-externalagent
Disallow: /

# END Cloudflare Managed Content

User-Agent: *
Allow: /
Disallow: /dashboard/
Disallow: /settings/
Disallow: /api/
Disallow: /setup/

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

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.supportkori.com/
307https://supportkori.com/

HTTP → HTTPS

308http://www.supportkori.com/ https://www.supportkori.com/

Consistent

A+
Domain Intelligence
supportkori.com — via Hosting Concepts B.V. d/b/a Registrar.eu, 8 months old
PASS
supportkori.com — via Hosting Concepts B.V. d/b/a Registrar.eu, 8 months old
Info::
Domain registered until Dec 23, 2026 (4 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: Hosting Concepts B.V. d/b/a Registrar.eu
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

119 days

December 23, 2026

SSL certificate

79 days

Issued by Google Trust Services

Domain age

8 months

Registered December 23, 2025

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3032::ac43:9d82

Registrar

Hosting Concepts B.V. d/b/a Registrar.eu

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 Hosting Concepts B.V. d/b/a Registrar.eu
Created December 23, 2025 (8 months ago)
Expires December 23, 2026 (4 months)
Last Updated February 13, 2026
Name Servers barbara.ns.cloudflare.com, vern.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3032::ac43:9d82
Data source: rdap (0.8s)

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 304 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
38 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.
21 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
303 ms
Total Time Total request time from DNS lookup through full response.
304 ms

Connection waterfall

DNS Lookup 38 ms TCP Connect 17 ms TLS Handshake 21 ms Server Processing 226 ms Content Transfer 2 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: a2e746cedc53554e-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: a2e746cedc53554e-CDG
A+
CDN Cache Observability
Cache state: DYNAMIC
PASS
Cache state: DYNAMIC
Info::
CDN cache state observable via 3 header(s)
Got: age=134883, cf-cache-status=DYNAMIC, x-vercel-cache=HIT
A+
Health Check Endpoint
Health endpoint at https://www.supportkori.com/health (HTTP 200)
PASS
Health endpoint at https://www.supportkori.com/health (HTTP 200)
Info::
Public health endpoint at https://www.supportkori.com/health
Got: https://www.supportkori.com/health
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback