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https://radaresportivo.com

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
6
PASS
10
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
10 PASS 6 REVIEW 1 FIX
F
Crawlability
Action
robots.txt present, sitemap with 0 URLs
FIX
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 433 bytes
Critical::
robots.txt blocks all crawlers
Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.
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.

Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.

Why this matters

Disallow: / in robots.txt blocks every search crawler — the site becomes invisible in organic search.

Learn more

Common deployment mistake: a staging robots.txt with `User-agent: * / Disallow: /` ships to prod. The site falls out of search results within days. Verify your robots.txt is the production-intended version. If this is intentional (private site), no action needed.

Source: Google Search Central

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 433 B Sitemaps referenced 0 User-agents *, Mediapartners-Google, Google-Display-Ads-Bot Blocking Yes — all crawlers blocked
User-agent: Mediapartners-Google
Disallow:
Allow: /*
User-agent: Google-Display-Ads-Bot
Disallow:
Allow: /*
User-agent: *
Allow: /$
Allow: /accumulator$
Allow: /ads.txt$
Allow: /ladder$
Allow: /legal/privacy$
Allow: /legal/terms$
Allow: /matchfinder$
Allow: /premium$
Allow: /strategies$
Allow: /tutorial/faq$
Allow: /tutorial$
Disallow: /
Disallow: /admin/
Disallow: /demo/
Disallow: /member/
Disallow: /staff/
Disallow: /wp-admin/

sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
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.
B
Reverse DNS
0/4 IPs match cert SAN
REVIEW
0/4 IPs match cert SAN
Info::
PTR for 13.249.228.69 does not match any cert SAN: server-13-249-228-69.cdg50.r.cloudfront.net
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
Info::
PTR for 13.249.228.47 does not match any cert SAN: server-13-249-228-47.cdg50.r.cloudfront.net
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
Info::
PTR for 13.249.228.17 does not match any cert SAN: server-13-249-228-17.cdg50.r.cloudfront.net
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
Info::
PTR for 13.249.228.20 does not match any cert SAN: server-13-249-228-20.cdg50.r.cloudfront.net
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
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

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

Certificate validity

238
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
4 A records, 38 ms lookup
PASS
4 A records, 38 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 13.249.228.69, 13.249.228.47, 13.249.228.17, 13.249.228.20
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-473.awsdns-59.com, ns-605.awsdns-11.net, ns-1131.awsdns-13.org, ns-1654.awsdns-14.co.uk
Info::
5 mail exchanger(s) configured
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
A13.249.228.69, 13.249.228.47, 13.249.228.17, 13.249.228.20
AAAA
CNAME
NSns-473.awsdns-59.com, ns-605.awsdns-11.net, ns-1131.awsdns-13.org, ns-1654.awsdns-14.co.uk
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
google-site-verification=Txy6gI6r76Haa8DKNIBQE17zm6FE7PjeXe2riXoeBtQ
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 30ms across 3 resolvers (spread 11ms)
PASS
Mean 30ms across 3 resolvers (spread 11ms)
Info::
Cloudflare: 24ms
Got: 24ms via 1.1.1.1:53
Info::
Quad9: 32ms
Got: 32ms via 9.9.9.9:53
Info::
Google: 35ms
Got: 35ms 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://radaresportivo.com

https://radaresportivo.com

56 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://radaresportivo.com20056 msHTTP/1.1AmazonS3
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

https://www.radaresportivo.com/
200https://radaresportivo.com/

HTTP → HTTPS

301http://radaresportivo.com/ https://radaresportivo.com/

Consistent

A+
Domain Intelligence
radaresportivo.com — via Amazon Registrar, Inc., 6 years old, hosted on AWS
PASS
radaresportivo.com — via Amazon Registrar, Inc., 6 years old, hosted on AWS
Info::
Domain registered until Jun 3, 2027 (1 years 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: Amazon Registrar, 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.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

384 days

June 3, 2027

SSL certificate

238 days

Issued by Amazon

Domain age

6 years

Registered June 3, 2020

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

13.249.228.69

Registrar

Amazon Registrar, Inc.

Unlocked 4 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 Amazon Registrar, Inc.
Created June 3, 2020 (6 years ago)
Expires June 3, 2027 (1 years)
Last Updated April 29, 2026
Name Servers ns-1131.awsdns-13.org, ns-1654.awsdns-14.co.uk, ns-473.awsdns-59.com, ns-605.awsdns-11.net
DNSSEC Not enabled
Hosting
IP Address 13.249.228.69
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.2s)

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 405 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
41 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.
21 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
406 ms
Total Time Total request time from DNS lookup through full response.
406 ms

Connection waterfall

DNS Lookup 41 ms TCP Connect 16 ms TLS Handshake 21 ms Server Processing 327 ms Content Transfer 0 ms
A+
CDN & Delivery
AWS CloudFront (RefreshHit from cloudfront)
PASS
AWS CloudFront (RefreshHit from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: CDG50-P6)
Got: x-amz-cf-id: 2YM1MXHrVKEgB3BRdQvMWOi9ONRkffdBcXljrJSyOI_L_xKz1fuGYQ==
Info::
CDN cache status: RefreshHit from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status RefreshHit from cloudfront Evidence x-amz-cf-id: 2YM1MXHrVKEgB3BRdQvMWOi9ONRkffdBcXljrJSyOI_L_xKz1fuGYQ==
A+
CDN Cache Observability
Cache state: REFRESHHIT
PASS
Cache state: REFRESHHIT
Info::
CDN cache state observable via 1 header(s)
Got: x-cache=RefreshHit from cloudfront
A+
Health Check Endpoint
Health endpoint at https://radaresportivo.com/health (HTTP 200)
PASS
Health endpoint at https://radaresportivo.com/health (HTTP 200)
Info::
Public health endpoint at https://radaresportivo.com/health
Got: https://radaresportivo.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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