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https://clinics-manegment-frontend.vercel.app

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
83
GRADE
B
FIX
0
REVIEW
7
PASS
9
INFO
1
Probed from Madrid, Spain
200 OK
Checks
17
9 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
0/2 IPs match cert SAN
REVIEW
0/2 IPs match cert SAN
Info::
PTR lookup failed for 216.198.79.195: lookup 216.198.79.195: 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 64.29.17.195: lookup 64.29.17.195: 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
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 23 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 23 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
TLS Certificate Expiry & Recommendations
30 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

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

Recommended actions

  • Renew certificate — 30 days remaining
  • 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, 44 ms lookup
PASS
2 A records, 44 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 216.198.79.195, 64.29.17.195
Info::
No IPv6 (AAAA) records
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: 44 ms
Got: 44 ms
A216.198.79.195, 64.29.17.195
AAAA—
CNAME—
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 44 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 19ms across 3 resolvers (spread 26ms)
PASS
Mean 19ms across 3 resolvers (spread 26ms)
Info::
Quad9: 2ms
Got: 2ms via 9.9.9.9:53
Info::
Google: 28ms
Got: 28ms via 8.8.8.8:53
Info::
Cloudflare: 28ms
Got: 28ms via 1.1.1.1:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://clinics-manegment-frontend.vercel.app

https://clinics-manegment-frontend.verce...

66 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://clinics-manegment-frontend.verce...20066 msHTTP/1.1Vercel
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

https://www.clinics-manegment-frontend.vercel.app/
200https://clinics-manegment-frontend.vercel.app/

HTTP → HTTPS

308http://clinics-manegment-frontend.vercel.app/ → https://clinics-manegment-frontend.vercel.app/

Consistent

A+
HTTP Probe Timing
Total 222 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
32 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.
38 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
223 ms
Total Time Total request time from DNS lookup through full response.
223 ms

Connection waterfall

DNS Lookup 32 ms TCP Connect 1 ms TLS Handshake 38 ms Server Processing 151 ms Content Transfer 0 ms
A+
CDN & Delivery
Vercel (HIT)
PASS
Vercel (HIT)
Info::
Document is served via Vercel CDN
Got: delegation clinics-manegment-frontend.vercel.app
Info::
CDN cache status: HIT
Document served via CDN: Vercel
Provider Vercel Cache Status HIT Evidence delegation clinics-manegment-frontend.vercel.app
A+
CDN Cache Observability
Cache state: HIT
PASS
Cache state: HIT
Info::
CDN cache state observable via 2 header(s)
Got: age=102, x-vercel-cache=HIT
A+
Health Check Endpoint
Health endpoint at https://clinics-manegment-frontend.vercel.app/health (HTTP 200)
PASS
Health endpoint at https://clinics-manegment-frontend.vercel.app/health (HTTP 200)
Info::
Public health endpoint at https://clinics-manegment-frontend.vercel.app/health
Got: https://clinics-manegment-frontend.vercel.app/health
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

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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