Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations58 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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
A+DNS Records2 A records, 13 ms lookupPASS
| A | 104.18.121.34, 104.18.120.34 |
| AAAA | 2606:4700::6812:7922, 2606:4700::6812:7822 |
| CNAME | — |
| NS | dale.ns.cloudflare.com, dawn.ns.cloudflare.com |
| MX | 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com |
| TXT | 8w1qmf6bm5y6kqlrm4f4yfsr6qlnfk22 MByF5nNrYm2ZTBJwDgKrjdLK72fAu8lmLbSQ/+2FLeo= _31ta71d8q1tn9ql9pa7snt097duxq20 _8rpzuqvewgv5xw5y3uix7kch3cktss4 atlassian-domain-verification=x0tq1zEwtSVVYCejT3PcFCcYU4jVlJwkaGtFtVeZ/BVBMa3gPA... dvyxp7dhgk108g73clvwlpjlnc3mmrhf facebook-domain-verification=cn8wifx8mlbzoa2gqc441t4o0hwusp google-site-verification=56-1XCIk5B7-vb0iQTstDEHDmjGr6Mu189qte-p9i5E google-site-verification=5r36RkUYWySxjakYdgvwiD2SPKgdtzNx1skw5Z2S53Q google-site-verification=A_9cnQnuxy4_vUqy9s-jBs9RyKQvFmllWJeLCp28yC8 google-site-verification=KPfYElnIVz1bY3AAqG5v8sCPrUlY4goOw3q0gij1oTM google-site-verification=Mt3oKEfVGt3DxQaU5m8rYX_qzh1L8fkoeoFytgdTJGE google-site-verification=Q_yLRX95ZwWHhGnGoKioV1g4k3LMU4dXfbDPPGrppMM google-site-verification=Ye5RxsCahvxrd6Vn16NBeasGgJhNCCn7wC5b0nYxAis google-site-verification=aBJMuBHgulMoaCMwLkFJ7WZ5Do0v9KQ-U_BXEIDNNX0 google-site-verification=ok7y1yBVKZsgXfQyS9pM6q44rfIRxnJy8EUBfAq7tUk google-site-verification=qZNGtdnE5DRcmWR2tVP62vkQaYik1ApmNxo7OQfIxAU google-site-verification=vQmfLFjS3E_tjRcA-2mAaNNxegMvDbkTLbWSINYmKKU SPF v=spf1 include:_spf.google.com include:_spf.hushmail.com include:sendgrid.net ip... |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Redirect ChainNo redirects — direct accessPASS
https://surfshark.com
90 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://surfshark.com | 200 | 90 ms | HTTP/1.1 | cloudflare |
A+IPv6 ReadinessIPv6 reachable (2 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 9 URLsPASS
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
User-agent: *
Disallow: /deal/influencer*
Disallow: /influencer/*
Disallow: /api/*
Disallow: /wp-content/uploads/2023/01/Surfshark_Nologs-assurance.pdf
Disallow: /wp-content/uploads/2025/06/ISAE_3000-_Report-Surfshark_No_Log_VPN.pdf
Disallow: /media/SurfShark-InfrastructureTestReport_20251217_Public.pdf
Disallow: /*?*c_correlation_id=
Disallow: /authors?Change*
Allow: /influencer/mrbeast
- https://surfshark.com/post-sitemap.xml
- https://surfshark.com/post-sitemap2.xml
- https://surfshark.com/post-sitemap3.xml
- https://surfshark.com/page-sitemap.xml
- https://surfshark.com/page-sitemap2.xml
- https://surfshark.com/page-sitemap3.xml
- https://surfshark.com/category-sitemap.x...
- https://surfshark.com/research-sitemap.x...
- https://surfshark.com/website-sitemap.xm...
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencesurfshark.com — via TurnCommerce, Inc. DBA NameBright.com, 18 years, 9 months oldPASS
1932 days
September 30, 2031
58 days
Issued by Google Trust Services
18 years, 9 months
Registered September 30, 2007
Not enabled
Protects against DNS spoofing
Unknown
2606:4700::6812:7822
TurnCommerce, Inc. DBA NameBright.com
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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