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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
76
GRADE
C
FIX
3
REVIEW
3
PASS
6
INFO
0
Checks
12
6 PASS 3 REVIEW 3 FIX
D
Content Security Policy
Action
4 of 10 CSP checks passed
FIX
4 of 10 CSP checks passed
Info::
Raw CSP policy
Got: default-src https: blob: ; script-src https: blob: 'unsafe-inline' 'unsafe-eval'; style-src https: 'unsafe-inline' ; img-src https: data: ; media-src blob: https: ; upgrade-insecure-requests; block-all-mixed-content; connect-src https: wss://*.insurads.com wss://*.hotjar.com;
Info::
default-src directive is set
Got: default-src https: blob:
Critical::
'unsafe-inline' found in script source
'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
Got: script-src https: blob: 'unsafe-inline' 'unsafe-eval'
Critical::
'unsafe-eval' found in script source
'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.
Got: script-src https: blob: 'unsafe-inline' 'unsafe-eval'
Info::
No wildcard in script source
Info::
object-src falls back to default-src
Warning::
base-uri directive is missing
Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.
Expected: base-uri 'self'
Warning::
frame-ancestors directive is missing
frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.
Expected: frame-ancestors 'self'
Warning::
form-action directive is missing
form-action restricts where forms can submit data, preventing form hijacking.
Expected: form-action 'self'
Info::
upgrade-insecure-requests is enabled

'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.

Why this matters

Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.

Learn more ▾

unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.

Source: OWASP CSP / MDN

'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.

Why this matters

Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.

Learn more ▾

unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.

Source: OWASP CSP / MDN

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'
Why this matters

Missing base-uri in CSP leaves a base-tag injection attack path open even on otherwise strict policies.

Learn more ▾

A common omission: developers add CSP for script-src and frame-ancestors but forget base-uri. The result is a CSP that looks strict but lets an attacker rewrite every URL on the page via <base href>. Add `base-uri 'self'` to close the gap.

Source: MDN CSP

frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.

Expected: frame-ancestors 'self'
Why this matters

Security gaps expose your site and users to attacks, eroding trust.

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'
Why this matters

Security gaps expose your site and users to attacks, eroding trust.

Parsed Policy

default-src https:blob:
script-src https:blob:'unsafe-inline''unsafe-eval'
style-src https:'unsafe-inline'
img-src https:data:
media-src blob:https:
upgrade-insecure-requests
block-all-mixed-content
connect-src https:wss://*.insurads.comwss://*.hotjar.com
F
Subresource Integrity
Action
0 of 19 external resources have SRI
FIX
0 of 19 external resources have SRI
Warning::
External script from cdn.id5-sync.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.id5-sync.com/api/1.0/id5PrebidModule.js
Warning::
External script from cmp.inmobi.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cmp.inmobi.com/tcfv2/58/cmp2.js?referer=sapo.pt
Warning::
External script from www.googletagmanager.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.googletagmanager.com/gtm.js?id=GTM-WP4J7W&gtg_health=1
Warning::
External script from cmp.inmobi.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cmp.inmobi.com/choice/xBMpAuESvQJgy/sapo.pt/choice.js?tag_version=V3
Warning::
External script from js.sapo.pt lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //js.sapo.pt/Projects/CPU/latest/SAPO_CPU.min.js
Warning::
External link from fonts.googleapis.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fonts.googleapis.com/css2?family=Roboto+Flex:opsz,wght@8..144,100..1000&display=swap
Warning::
External script from pub.doubleverify.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://pub.doubleverify.com/dvtag/33739878/DV1349746/pub.js
Warning::
External script from js.sapo.pt lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //js.sapo.pt/Projects/CPU/latest/prebid10.17.0.js
Warning::
External script from pub.doubleverify.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://pub.doubleverify.com/dvtag/33739878/DV1349746/pub.js
Warning::
External script from securepubads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://securepubads.g.doubleclick.net/tag/js/gpt.js
Warning::
External script from securepubads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js
Warning::
External script from invstatic101.creativecdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://invstatic101.creativecdn.com/encrypted-signals/encrypted-tag-g.js
Warning::
External script from tags.crwdcntrl.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://tags.crwdcntrl.net/lt/c/16589/sync.min.js
Warning::
External script from static.criteo.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.criteo.net/js/ld/publishertag.ids.js
Warning::
External script from cdn.id5-sync.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.id5-sync.com/api/1.0/esp.js
Warning::
External script from ads.pubmatic.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ads.pubmatic.com/AdServer/js/google-esp.js
Warning::
External script from dmp.im-apps.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://dmp.im-apps.net/secure-signal/provider.js
Warning::
External script from oa.openxcdn.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://oa.openxcdn.net/esp.js
Warning::
External script from ep2.adtrafficquality.google lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ep2.adtrafficquality.google/sodar/sodar2.js
SRI Coverage 0 / 19 of external resources have integrity hashes
TagDomainIntegrity
<script>cdn.id5-sync.com✗ Missing
<script>cmp.inmobi.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>cmp.inmobi.com✗ Missing
<script>js.sapo.pt✗ Missing
<link>fonts.googleapis.com✗ Missing
<script>pub.doubleverify.com✗ Missing
<script>js.sapo.pt✗ Missing
<script>pub.doubleverify.com✗ Missing
<script>securepubads.g.doubleclick.net✗ Missing
<script>securepubads.g.doubleclick.net✗ Missing
<script>invstatic101.creativecdn.com✗ Missing
<script>tags.crwdcntrl.net✗ Missing
<script>static.criteo.net✗ Missing
<script>cdn.id5-sync.com✗ Missing
<script>ads.pubmatic.com✗ Missing
<script>dmp.im-apps.net✗ Missing
<script>oa.openxcdn.net✗ Missing
<script>ep2.adtrafficquality.google✗ Missing
D
security.txt
Action
No /.well-known/security.txt published
FIX

security.txt

No security.txt found at /.well-known/security.txt

B
Security Headers
7 of 10 headers properly configured
REVIEW
7 of 10 headers properly configured
Warning::
HSTS is missing includeSubDomains
Without includeSubDomains, subdomains can still be accessed over HTTP.
Got: max-age=31536000 Expected: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: SAMEORIGIN
Info::
Referrer-Policy is properly configured
Got: strict-origin-when-cross-origin
Info::
Permissions-Policy is set
Got: geolocation=(), camera=(), microphone=()
Info::
Content-Security-Policy is present
Got: default-src https: blob: ; script-src https: blob: 'unsafe-inline' 'unsafe-eval'…
Warning::
Cross-Origin-Opener-Policy header is missing
COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.
Expected: same-origin
Warning::
Cross-Origin-Embedder-Policy header is missing
COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.
Expected: require-corp
Info::
X-Powered-By header is not present
Info::
Server header is not present

Without includeSubDomains, subdomains can still be accessed over HTTP.

Expected: max-age=31536000; includeSubDomains
Why this matters

Without includeSubDomains, a forgotten dev subdomain over HTTP can set malicious cookies that ride to the apex.

Learn more ▾

HSTS without includeSubDomains protects only the exact domain. Cookies set on a non-HSTS subdomain can ride to the apex via cookie-scope attacks. The fix is one directive append. Verify all subdomains support HTTPS first — adding includeSubDomains to a domain with HTTP-only subdomains breaks them.

Source: RFC 6797

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin
Why this matters

COOP isolates your top-level browsing context from cross-origin windows — without it, popup-based side-channel attacks remain possible.

Learn more ▾

Cross-Origin-Opener-Policy: same-origin prevents cross-origin pages from sharing a browsing-context group with yours. This blocks cross-window references that enable Spectre-style timing attacks and tab-nabbing. Required if you want to enable SharedArrayBuffer.

Source: MDN / web.dev

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp
Why this matters

COEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.

Learn more ▾

Cross-Origin-Embedder-Policy: require-corp ensures every embedded resource (script, iframe, image) explicitly allows being loaded cross-origin. Combined with COOP, this enables the cross-origin-isolated context that unlocks SharedArrayBuffer, high-resolution timers, and other powerful APIs.

Source: MDN / web.dev

B
Permissions-Policy
3 directives, 2 missing
REVIEW
3 directives, 2 missing
Info::
geolocation=() — blocked for all origins
Info::
camera=() — blocked for all origins
Info::
microphone=() — blocked for all origins
Info::
payment not restricted
Consider adding payment=() to block payment access from embedded content.
Info::
usb not restricted
Consider adding usb=() to block usb access from embedded content.

Raw Header

geolocation=() camera=() microphone=()

Feature Permissions

Blocked Self Only Unrestricted Not Set
geolocation Blocked
camera Blocked
microphone Blocked
payment Not Set
usb Not Set
B
CORS Configuration
No CORS headers
REVIEW
No CORS headers
Info::
No CORS headers present — secure default
CORS Configuration ✓ Secure

No CORS headers detected.

Cross-origin requests are blocked by browser same-origin policy.

Origin reflection test

Some servers mirror the request Origin header, which can be exploited. Test manually:

curl -sI -H "Origin: https://evil.com" <url> | grep -i access-control
A+
TLS & Certificates
TLS 1.3, 7 checks passed
PASS
TLS 1.3, 7 checks passed
Info::
TLS 1.3 is used
Got: TLS 1.3
Info::
Strong cipher suite is used
Got: TLS_AES_256_GCM_SHA384
Info::
HTTP/2 is not negotiated
HTTP/2 provides multiplexing and header compression for better performance.
Got: http/1.1
Info::
Certificate is valid (expires in 200 days)
Got: 2026-11-07T23:59:59Z
Info::
Certificate chain has 3 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 2 domain(s)
Got: *.sapo.pt, sapo.pt
Info::
Certificate is issued by a trusted CA
Got: CN=GeoTrust TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=US

HTTP/2 provides multiplexing and header compression for better performance.

Why this matters

HTTP/1.1 forces the browser to make sequential requests, multiplying latency on every page.

Learn more ▾

HTTP/2 (and HTTP/3) multiplex many requests over a single connection, eliminating head-of-line blocking. HTTP/1.1 forces the browser to either queue requests or open many parallel connections — both worse. Most modern web servers support HTTP/2 with one config line.

Source: MDN Web Docs

Connection
Protocol
TLS 1.3
Cipher Suite
TLS_AES_256_GCM_SHA384
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=*.sapo.ptIssuer CN=GeoTrust TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2025-10-21T00:00:00Z → 2026-11-07T23:59:59ZExpires in 200 days SANs *.sapo.pt, sapo.ptSignature SHA256-RSASerial 5a5d0db9f3f72cc2626326dbc179558
Intermediate (CA Certificate)
Subject CN=GeoTrust TLS RSA CA G1,OU=www.digicert.com,O=DigiCert Inc,C=USIssuer CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2017-11-02T12:23:37Z → 2027-11-02T12:23:37ZExpires in 559 days Signature SHA256-RSASerial d07782a133fc6f9a57296e131ffd179
Intermediate (CA Certificate)
Subject CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USIssuer CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2013-08-01T12:00:00Z → 2038-01-15T12:00:00ZExpires in 4286 days Signature SHA256-RSASerial 33af1e6a711a9a0bb2864b11d09fae5
A+
Cookie Security
No cookies set — no cookie security risks
PASS
No cookies set — no cookie security risks
Info::
No cookies set — no cookie security risks

No cookies detected — no cookie security risks to report.

A+
JS Library Vulnerabilities
No known vulnerabilities
PASS
No known vulnerabilities
Info::
No known JavaScript library vulnerabilities detected

No known JavaScript library vulnerabilities detected.

A+
Information Leakage
No exposures
PASS
No exposures
Info::
No security.txt found
Consider adding a security.txt at /.well-known/security.txt.
Info::
No sensitive files exposed

No sensitive files exposed — all paths returned 404.

PathStatusCategoryRisk
/.git/HEAD✓ Not foundVersion Control—
/.git/config✓ Not foundVersion Control—
/.svn/entries✓ Not foundVersion Control—
/.env✓ Not foundConfiguration—
/.env.local✓ Not foundConfiguration—
/.env.production✓ Not foundConfiguration—
/wp-config.php✓ Not foundConfiguration—
/.htaccess✓ Not foundConfiguration—
/phpinfo.php✓ Not foundDebug—
/server-status✓ Not foundDebug—
/server-info✓ Not foundDebug—
/.well-known/security.txt✓ Not foundSecurity Policy—
A
Email Security
DMARC: quarantine
PASS
DMARC: quarantine
Info::
DMARC policy is quarantine — good protection
DMARC
Policy quarantine — good protection Record v=DMARC1;p=quarantine;pct=100;rua=mailto:dmarc-reports@sl.pt;ri=86400;aspf=r;adkim=r;
A
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) not advertised
HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.
Info::
HSTS enabled (base policy)
Info::
HSTS missing includeSubDomains
Without includeSubDomains, HSTS only protects the exact domain.
Info::
TLS 1.3 in use (fastest handshake, 1-RTT)
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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