Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Singapore, Singapore

403 Forbidden

Checks

7 PASS 9 REVIEW 1 FIX

CDN & Delivery

Action

No CDN detected

FIX

No CDN detected

A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.

No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

DNSSEC

Unsigned (DNSSEC not deployed)

REVIEW

Unsigned (DNSSEC not deployed)

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).

CAA Records

No CAA records (any CA may issue certificates)

REVIEW

No CAA records (any CA may issue certificates)

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.

Reverse DNS

0/2 IPs match cert SAN

REVIEW

0/2 IPs match cert SAN

PTR for 23.44.4.152 does not match any cert SAN: a23-44-4-152.deploy.static.akamaitechnologies.com

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.

PTR for 23.44.4.179 does not match any cert SAN: a23-44-4-179.deploy.static.akamaitechnologies.com

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

Crawlability

no robots.txt, no sitemap

REVIEW

no robots.txt, no sitemap

No robots.txt found

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

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.

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

REVIEW

www/non-www, trailing slash, HTTP→HTTPS

HTTP version does not redirect to HTTPS

Got: HTTP 403 Expected: 301 redirect to HTTPS

www / non-www

403https://www.santander.com.br/

200https://santander.com.br/

HTTP → HTTPS

403http://santander.com.br/

HTTP version does not redirect to HTTPS

TLS Certificate Expiry & Recommendations

79 days until leaf cert expires — 2 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
Enable DNSSEC on your domain for DNS spoofing protection

CDN Cache Observability

No CDN cache-status headers in the response

REVIEW

No CDN cache-status headers in the response

Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.

Operational Status Page

No status page link detected

REVIEW

No status page link detected

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, 12 ms lookup

PASS

2 A records, 12 ms lookup

Resolves to 2 IPv4 address(es)

Got: 23.44.4.152, 23.44.4.179

No IPv6 (AAAA) records

14 nameserver(s) configured

Got: use1.akam.net, ns1-127.akam.net, ns2.santander.com.br, usw1.akam.net, use5.akam.net, eur5.akam.net, ns1.santander.com.br, asia2.akam.net, asia1.akam.net, ns1-115.akam.net, usw2.akam.net, ns1-88.akam.net, use4.akam.net, ns1-104.akam.net

6 mail exchanger(s) configured

SPF record present in TXT

DNS resolution time: 12 ms

Got: 12 ms

A	23.44.4.152, 23.44.4.179
AAAA	—
CNAME	—
NS	use1.akam.net, ns1-127.akam.net, ns2.santander.com.br, usw1.akam.net, use5.akam.net, eur5.akam.net, ns1.santander.com.br, asia2.akam.net, asia1.akam.net, ns1-115.akam.net, usw2.akam.net, ns1-88.akam.net, use4.akam.net, ns1-104.akam.net
MX	10 mx2.hc6154-33.iphmx.com 10 mx1.hc6154-33.iphmx.com 50 mx2.hc5532-55.iphmx.com 50 mx1.hc5532-55.iphmx.com 90 mx2.santandergroup.c3s2.iphmx.com 90 mx1.santandergroup.c3s2.iphmx.com
TXT	globalsign-domain-verification=d12dda68acff6e0a57dac5a3d0ec322b MS=ms60307866 _aemverification.stage-publish-aem.santander.com.br Dynatrace-site-verification=5c059899-7e53-40e3-bea5-72c8f301ff23__k7ajm6ialc7ra8... miro-verification=33650d7b9155393260462651b5a25d0c9e484793 _pki-validation.santander.com.br SPF v=spf1 exists:%{i}.spf.us.gruposantander.com exists:%{i}.spf.as.gruposantander.c... google-site-verification=HQHtDz3BuXDg91fDQMsClIfsv83E-ABhc7H16tkzUAE Dynatrace-site-verification=13e34536-2d16-4c36-8fa7-4c508887f062__2gkomfecllftjt... atlassian-domain-verification=TFnmCsLwUj4y/ta3Let8OTUy/LAA0o444LEq1oIvcfzM1/BSJ5... Dynatrace-site-verification=48289087-dd25-4c57-97e9-e4a6a49040cf__pf81noeda1hmo3... atlassian-domain-verification=tMjCuC0565lJoomyho8otqjiS6wVB08AaMTT1tow02/SEFAdeR... LzveCtHKDp8fUeuw/ZEOofuAq3V7e6AMsEcM61N1St8bBaDhq6sRwunmdcDSJhf93/OVH3/XUkCUOouK... Dynatrace-site-verification=06b560d4-358f-42c6-92fe-8f439936daed__v3r4q7jpd8dts3... ZEv8+tQB2OSbHNxN7c9sHKhQB0C1xNpWh42sY7Egplr/bss4V/PbXkmx82PhT0UfUad8hSAR0IUyUzWV... 1734589b-a2d4-4c19-8016-9164d8897570 Dynatrace-site-verification=8c92a42f-b71e-4373-a148-fc8e6be4b8b3__kuji401p9lovao... ibmid=38099f1a-91be-4cd5-b7cd-d8047207a844 yahoo-verification-key=hd8lrr9rtgkFd2pisBblyKfV0e9pIdIfFY4EIH3Cc2o= Dynatrace-site-verification=f61349f7-499f-497d-bc26-9f6d2bf24424__cp0fi84063ghhi... d12dda68acff6e0a57dac5a3d0ec322b _56kejmc41bda7dns5yixzo3mij3c3vo globalsign-domain-verification=DAC241FDF007505424BF68185CA7715B docusign=57d85375-75ba-4dfb-97b1-2667fcc8c2b0 Dynatrace-site-verification=891e2c5d-5fcf-4e77-b4d3-f2593507e20e__2hqo12gr5962lh... _aemverification.prod-publish-aem.santander.com.br Dynatrace-site-verification=1704fde6-fefe-402c-a1f2-5b777971def8__ispcttacfftvcb... google-site-verification=mV0IIYRWjWPh9YmeA-7mZyZwD_0Wb4J_jPCEOoZryBE _kbouphf9lp5vk8tqfzlruzkm0btz9zq adobe-idp-site-verification=943233cacd112d22dc95a96c5177dbc452a3557c7479790d2b2b... _aemverification.dev-publish-aem.santander.com.br
CAA	Lookup not available with standard resolver

Resolved in 12 ms

A+

Subdomain Takeover

No subdomain takeover risk detected

PASS

No subdomain takeover risk detected

No CNAME record present

A+

Multi-Resolver DNS Speed

Mean 2ms across 3 resolvers (spread 2ms)

PASS

Mean 2ms across 3 resolvers (spread 2ms)

Google: 1ms

Got: 1ms via 8.8.8.8:53

Cloudflare: 2ms

Got: 2ms via 1.1.1.1:53

Quad9: 3ms

Got: 3ms via 9.9.9.9:53

A+

Redirect Chain

0 redirect(s), 90 ms total

PASS

0 redirect(s), 90 ms total

https://santander.com.br

90 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://santander.com.br	403	90 ms	HTTP/1.1

A+

Domain Intelligence

santander.com.br — 29 years, 10 months old, hosted on Akamai

PASS

santander.com.br — 29 years, 10 months old, hosted on Akamai

Domain registered until Dec 23, 2027 (1 years, 7 months remaining)

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.

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.

Hosting: Akamai

Got: AS20940

Domain expiry

555 days

December 23, 2027

SSL certificate

79 days

Issued by DigiCert Inc

Domain age

29 years, 10 months

Registered December 23, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Akamai

ASN AS20940

23.54.118.51

Registrar

Registrar unknown

Unlocked 5 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

Created December 23, 1996 (29 years, 10 months ago)

Expires December 23, 2027 (1 years, 7 months)

Last Updated December 24, 2022

Name Servers use5.akam.net, usw1.akam.net, ns1-88.akam.net, ns1-127.akam.net, asia1.akam.net

DNSSEC Not enabled

Registrant Banco Santander (Brasil) S.A.

Hosting

IP Address 23.54.118.51

ASN AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL)

Provider Akamai

Data source: rdap (2.2s)

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 121 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

7 ms

TCP Connect

1 ms

TLS Handshake

92 ms

Time to First Byte

121 ms

Total Time

121 ms

Connection waterfall

DNS Lookup 7 ms TCP Connect 1 ms TLS Handshake 92 ms Server Processing 21 ms Content Transfer 0 ms

A+

Health Check Endpoint

Auth-protected health endpoint at https://santander.com.br/health (HTTP 403)

PASS

Auth-protected health endpoint at https://santander.com.br/health (HTTP 403)

Auth-protected health endpoint exposed at https://santander.com.br/health

Got: https://santander.com.br/health

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.