Skip to content
https://mega.nz

Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
72
GRADE
C
FIX
2
REVIEW
4
PASS
6
INFO
0
Checks
12
6 PASS 4 REVIEW 2 FIX
F
Subresource Integrity
Action
0 of 37 external resources have SRI
FIX
0 of 37 external resources have SRI
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/fonts.css?ver=1707971095
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/theme.css?ver=1771295007
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/icons.css?ver=1771295007
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/buttons.css?ver=1751434940
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/common.css?ver=1772447664
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/animated-hero/block.css?ver=1715571586
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/assets/css/common.css?ver=1760488426
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/simple-card/block.css?ver=1691036107
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/ft-simple-card-column/block.css?ver=1771295001
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/single-slice/block.css?ver=1751434886
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/feature-alternating/block.css?ver=1751434886
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/feature-alternating/block.css?ver=1751434886
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/pricing-page/competitor-matrix/card/block.css?ver=1675909214
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/pricing-page/competitor-matrix/core-block/block.css?ver=1760488426
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/ft-alternating-coming-soon/block.css?ver=1751434886
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/full-width-banner/block.css?ver=1765501716
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-includes/blocks/spacer/style.min.css?ver=6.6.2
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/home-social-proof/block.css?ver=1739304548
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/wp.css?ver=1674104882
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/templates/header.css?ver=1760488432
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/templates/footer.css?ver=1751434940
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/dialogs.css?ver=1751434940
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/css/blocks.css?ver=1674104882
Warning::
External link from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/assets/css/dialogs.css?ver=1739304548
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/js/megalib.js?ver=1774412887
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/js/megalib-components.js?ver=1771295007
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/animated-hero/view.js?ver=1739304548
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/single-slice/view.js?ver=1693887273
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/ft-alternating-block-a/view.js?ver=1693887273
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/feature-alternating/view.js?ver=1739304548
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/pricing-page/competitor-matrix/card/view.js?ver=1751434886
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/ft-alternating-coming-soon/view.js?ver=1751434886
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/full-width-banner/view.js?ver=1693966608
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/blocks/home-social-proof/view.js?ver=1727132447
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/megalib/js/analytics.js?ver=1718164812
Warning::
External script from mega.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://mega.io/wp-content/themes/megapages/assets/js/megapages.js?ver=1772447658
SRI Coverage 0 / 37 of external resources have integrity hashes
TagDomainIntegrity
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<link>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
<script>mega.io Missing
D
Permissions-Policy
Action
No header set
FIX
No header set
Warning::
No Permissions-Policy header
Consider adding a Permissions-Policy header to restrict browser feature access from embedded content.

No Permissions-Policy header set.

Without this header, embedded iframes can request access to sensitive device features.

Suggested header
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=()
C
Security Headers
Action
5 of 10 headers properly configured
REVIEW
5 of 10 headers properly configured
Info::
Strict-Transport-Security is properly configured
Got: max-age=63072000; includeSubDomains; preload
Warning::
X-Content-Type-Options header is missing
This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.
Expected: nosniff
Info::
X-Frame-Options is properly configured
Got: SAMEORIGIN
Warning::
Referrer-Policy header is missing
Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.
Expected: strict-origin-when-cross-origin
Warning::
Permissions-Policy header is missing
Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.
Expected: geolocation=(), camera=(), microphone=()
Info::
Content-Security-Policy is present
Got: default-src 'self' data: blob: *.mega.co.nz *.mega.nz *.mega.io http://*.mega.co…
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

This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.

Expected: nosniff
Why this matters

MIME sniffing lets browsers run uploaded files as JavaScript, turning a file upload into an XSS.

Learn more

Setting X-Content-Type-Options: nosniff tells browsers to trust your declared Content-Type instead of guessing. Without it, an attacker who uploads a polyglot file can sometimes get it executed as a script. One header, no downside.

Source: OWASP / MDN

Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.

Expected: strict-origin-when-cross-origin
Why this matters

Default browser behavior leaks full URLs (including query params and tokens) to every third-party resource — set a strict policy.

Learn more

Without a Referrer-Policy header, browsers send the full referring URL with images, scripts, and fonts loaded from third-party origins. URLs containing tokens, user IDs, or session params end up in third-party logs. Set `Referrer-Policy: strict-origin-when-cross-origin` (or stricter) to limit leakage.

Source: MDN / W3C

Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.

Expected: geolocation=(), camera=(), microphone=()
Why this matters

Permissions-Policy locks down browser APIs you don't use — without it, every page can request camera/mic/geolocation if XSS lands.

Learn more

By default every page can request the camera, microphone, geolocation, payment APIs, and dozens more. Permissions-Policy turns off the ones you don't need so a future bug can't quietly start using them. It's a defense-in-depth header — one line, big surface reduction.

Source: MDN / W3C

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
Content Security Policy
5 of 10 CSP checks passed
REVIEW
5 of 10 CSP checks passed
Info::
Raw CSP policy
Got: default-src 'self' data: blob: *.mega.co.nz *.mega.nz *.mega.io http://*.mega.co.nz http://*.mega.nz http://*.mega.io wss://*.mega.co.nz wss://*.karere.mega.nz *.karere.mega.nz:1380 http://127.0.0.1:6341 localhost.megasyncloopback.mega.nz:6342; script-src 'self' *.mega.co.nz *.mega.nz *.mega.io data: blob:; style-src 'self' 'unsafe-inline' *.mega.co.nz *.mega.nz *.mega.io data: blob:; frame-src 'self' *.megapay.nz ad.mega.nz mega: *.megaad.nz https://mega.nz/ https://mega.io/; img-src 'self' *.mega.co.nz *.mega.nz *.mega.io data: blob: mega.nz
Info::
default-src directive is set
Got: default-src 'self' data: blob: *.mega.co.nz *.mega.nz *.mega.io http://*.mega.co.nz http://*.mega.nz http://*.mega.io wss://*.mega.co.nz wss://*.karere.mega.nz *.karere.mega.nz:1380 http://127.0.0.1:6341 localhost.megasyncloopback.mega.nz:6342
Info::
No 'unsafe-inline' in script source
Info::
No 'unsafe-eval' in script source
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 not set
This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.
Expected: upgrade-insecure-requests

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.

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests
Why this matters

Without upgrade-insecure-requests, any HTTP subresource link survives as a mixed-content warning instead of auto-upgrading.

Learn more

Adding `upgrade-insecure-requests` to your CSP turns every http:// subresource fetch into https:// at the browser layer. One-line defense against accidental mixed content from legacy links or third-party widgets.

Source: MDN CSP

Parsed Policy

default-src 'self'data:blob:*.mega.co.nz*.mega.nz*.mega.iohttp://*.mega.co.nzhttp://*.mega.nzhttp://*.mega.iowss://*.mega.co.nzwss://*.karere.mega.nz*.karere.mega.nz:1380http://127.0.0.1:6341localhost.megasyncloopback.mega.nz:6342
script-src 'self'*.mega.co.nz*.mega.nz*.mega.iodata:blob:
style-src 'self''unsafe-inline'*.mega.co.nz*.mega.nz*.mega.iodata:blob:
frame-src 'self'*.megapay.nzad.mega.nzmega:*.megaad.nzhttps://mega.nz/https://mega.io/
img-src 'self'*.mega.co.nz*.mega.nz*.mega.iodata:blob:mega.nz
C
CORS Configuration
Action
Origin: *
REVIEW
Origin: *
Info::
Access-Control-Allow-Origin: * — unrestricted
Any website can read this resource's response. Appropriate for public APIs but not for user-specific content.
Info::
Origin reflection not testable with a single request
Some servers reflect the request Origin header. This requires manual testing with a crafted Origin header.
CORS Configuration Permissive
Allow-Origin *

Any website can read responses from this resource.

HeaderValueStatus
Access-Control-Allow-Origin*
Access-Control-Allow-HeadersMEGA-Chrome-Antileak
Access-Control-Max-Age86400

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
B
security.txt
Published with 0 contact(s)
REVIEW

security.txt

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_128_GCM_SHA256
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 21 days)
Got: 2026-05-12T23:00:54Z
Warning::
Certificate expires soon (21 days remaining)
Renew the certificate before it expires to avoid browser warnings.
Got: 2026-05-12T23:00:54Z
Info::
Certificate chain has 2 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 2 domain(s)
Got: mega.nz, www.mega.nz
Info::
Certificate is issued by a trusted CA
Got: CN=R12,O=Let's Encrypt,C=US

Renew the certificate before it expires to avoid browser warnings.

Why this matters

Cert expiry within the renewal window — fix now while there's no user impact, instead of after expiry when there's a full outage.

Learn more

Most CAs recommend renewal at 30 days remaining. Inside that window, schedule the renewal immediately and verify auto-renewal is configured if applicable. Don't wait until 7 days; weekend / holiday timing can leave you exposed.

Source: Let's Encrypt / CA renewal best practice

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_128_GCM_SHA256
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=mega.nzIssuer CN=R12,O=Let's Encrypt,C=USValid 2026-02-11T23:00:55Z → 2026-05-12T23:00:54ZExpires in 21 days — expiring soon! SANs mega.nz, www.mega.nzSignature SHA256-RSASerial 53533bc70a152805f99fe63504bc31d807c
Intermediate (CA Certificate)
Subject CN=R12,O=Let's Encrypt,C=USIssuer CN=ISRG Root X1,O=Internet Security Research Group,C=USValid 2024-03-13T00:00:00Z → 2027-03-12T23:59:59ZExpires in 325 days Signature SHA256-RSASerial c212324b70a9b49171dc40f7e285263c
A
Cookie Security
1 cookies analyzed, 1 checks passed
PASS
1 cookies analyzed, 1 checks passed
Info::
Cookie 'geoip' has the Secure flag
Warning::
Cookie 'geoip' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Warning::
Cookie 'geoip' has no SameSite attribute
Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict.
1 cookies analyzed 2 warnings
NameSecureHttpOnlySameSiteSizeIssues
geoip7 B2
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::
security.txt is present — good practice
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 ExposedSecurity PolicyInfo
A+
Email Security
DMARC: reject
PASS
DMARC: reject
Info::
DMARC policy is reject — strongest protection
DMARC
Policy reject — strongest protection Record v=DMARC1; p=reject; adkim=s; aspf=s; ri=86400
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 (includeSubDomains, preload)
Info::
HSTS preload enabled
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.

Send Feedback