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https://www.mullvad.net

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from New York, United Stated
301 Moved Permanently
Checks
9
5 PASS 3 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
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.

B
Redirect Chain
2 redirect(s), 831 ms total
REVIEW
2 redirect(s), 831 ms total
Warning::
2 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://mullvad.net/
Info::
Redirect overhead: 831 ms total
Got: 831 ms

https://www.mullvad.net

260 ms · HTTP/1.1

301

https://mullvad.net/

246 ms · HTTP/1.1

302

https://mullvad.net/en

325 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.mullvad.net301260 msHTTP/1.1nginx
2https://mullvad.net/302246 msHTTP/1.1nginx
3https://mullvad.net/en200325 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

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
84 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

84
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A
DNS Records
1 A records, 92 ms lookup
PASS
1 A records, 92 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 45.83.223.209
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: mullvad.net
Info::
4 nameserver(s) configured
Got: ns1.mullvaddns.net, ns2.mullvaddns.net, ns3.mullvaddns.net, ns4.mullvaddns.net
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 92 ms
Got: 92 ms
A45.83.223.209
AAAA—
CNAMEmullvad.net
NSns1.mullvaddns.net, ns2.mullvaddns.net, ns3.mullvaddns.net, ns4.mullvaddns.net
MX
10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
30 alt2.aspmx.l.google.com
40 aspmx2.googlemail.com
50 aspmx3.googlemail.com
TXT
bunny:303437
yandex-verification: f0e9a23691826011
gradle-verification=54GHA74UUTS2760IGPVSUPJ9LE6I6
google-site-verification=T6j3fHOnwX8sOP55jYtYfVH2J27u9rIY8kM9ApBzBXQ
atlassian-domain-verification=xOPm1CvufMcUMKi8KR/Q1i69lUU6WBai4zpIFVQcBszhnTja6H...
SPF v=spf1 ip4:193.138.218.78 ip4:193.138.218.77 ip4:193.138.218.76 ip4:193.138.218....
CAALookup not available with standard resolver
Resolved in 92 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more ▾

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A+
Crawlability
robots.txt present, sitemap with 1468 URLs
PASS
robots.txt present, sitemap with 1468 URLs
Info::
robots.txt is present
Got: 2990 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1468 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2990 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /account/create
Allow: /account/login
Allow: /account/recover/
Disallow: /account/

Allow: /ar/account/create
Allow: /ar/account/login
Allow: /ar/account/recover/
Allow: /da/account/create
Allow: /da/account/login
Allow: /da/account/recover/
Allow: /de/account/create
Allow: /de/account/login
Allow: /de/account/recover/
Allow: /en/account/create
Allow: /en/account/login
Allow: /en/account/recover/
Allow: /es/account/create
Allow: /es/account/login
Allow: /es/account/recover/
Allow: /fa/account/create
Allow: /fa/account/login
Allow: /fa/account/recover/
Allow: /fi/account/create
Allow: /fi/account/login
Allow: /fi/account/recover/
Allow: /fr/account/create
Allow: /fr/account/login
Allow: /fr/account/recover/
Allow: /it/account/create
Allow: /it/account/login
Allow: /it/account/recover/
Allow: /ja/account/create
Allow: /ja/account/login
Allow: /ja/account/recover/
Allow: /ko/account/create
Allow: /ko/account/login
Allow: /ko/account/recover/
Allow: /nl/account/create
Allow: /nl/account/login
Allow: /nl/account/recover/
Allow: /no/account/create
Allow: /no/account/login
Allow: /no/account/recover/
Allow: /pl/account/create
Allow: /pl/account/login
Allow: /pl/account/recover/
Allow: /pt/account/create
Allow: /pt/account/login
Allow: /pt/account/recover/
Allow: /ru/account/create
Allow: /ru/account/login
Allow: /ru/account/recover/
Allow: /sv/account/create
Allow: /sv/account/login
Allow: /sv/account/recover/
Allow: /th/account/create
Allow: /th/account/login
Allow: /th/account/recover/
Allow: /tr/account/create
Allow: /tr/account/login
Allow: /tr/account/recover/
Allow: /uk/account/create
Allow: /uk/account/login
Allow: /uk/account/recover/
Allow: /zh-hans/account/create
Allow: /zh-hans/account/login
Allow: /zh-hans/account/recover/
Allow: /zh-hant/account/create
Allow: /zh-hant/account/login
Allow: /zh-hant/account/recover/

Disallow: /ar/account/
Disallow: /ar/setlocale/
Disallow: /da/account/
Disallow: /da/setlocale/
Disallow: /de/account/
Disallow: /de/setlocale/
Disallow: /en/account/
Disallow: /en/setlocale/
Disallow: /es/account/
Disallow: /es/setlocale/
Disallow: /fa/account/
Disallow: /fa/setlocale/
Disallow: /fi/account/
Disallow: /fi/setlocale/
Disallow: /fr/account/
Disallow: /fr/setlocale/
Disallow: /it/account/
Disallow: /it/setlocale/
Disallow: /ja/account/
Disallow: /ja/setlocale/
Disallow: /ko/account/
Disallow: /ko/setlocale/
Disallow: /nl/account/
Disallow: /nl/setlocale/
Disallow: /no/account/
Disallow: /no/setlocale/
Disallow: /pl/account/
Disallow: /pl/setlocale/
Disallow: /pt/account/
Disallow: /pt/setlocale/
Disallow: /ru/account/
Disallow: /ru/setlocale/
Disallow: /sv/account/
Disallow: /sv/setlocale/
Disallow: /th/account/
Disallow: /th/setlocale/
Disallow: /tr/account/
Disallow: /tr/setlocale/
Disallow: /uk/account/
Disallow: /uk/setlocale/
Disallow: /zh-hans/account/
Disallow: /zh-hans/setlocale/
Disallow: /zh-hant/account/
Disallow: /zh-hant/setlocale/
Sitemap: https://mullvad.net/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 1468 entries Valid XML Yes
Sample URLs:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.mullvad.net/
302https://mullvad.net/

Preferred variant: www

HTTP → HTTPS

301http://www.mullvad.net/ → https://www.mullvad.net/

Consistent

A+
Domain Intelligence
mullvad.net — via Domeneshop AS dba domainnameshop.com, 17 years, 11 months old, hosted on ESAB-AS, SE
PASS
mullvad.net — via Domeneshop AS dba domainnameshop.com, 17 years, 11 months old, hosted on ESAB-AS, SE
Info::
Domain registered until Jul 10, 2026 (3 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: Domeneshop AS dba domainnameshop.com
Info::
Hosting: ESAB-AS, SE
Got: AS39351
Domain expiry

27 days

July 10, 2026

SSL certificate

84 days

Issued by Let's Encrypt

Domain age

17 years, 11 months

Registered July 10, 2008

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

ESAB-AS, SE

ASN AS39351

45.83.223.209

Registrar

Domeneshop AS dba domainnameshop.com

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
Registrar Domeneshop AS dba domainnameshop.com
Created July 10, 2008 (17 years, 11 months ago)
Expires July 10, 2026 (3 months)
Last Updated May 30, 2025
Name Servers ns1.mullvaddns.net, ns2.mullvaddns.net, ns3.mullvaddns.net, ns4.mullvaddns.net
DNSSEC Enabled
Hosting
IP Address 45.83.223.209
ASN AS39351 (ESAB-AS, SE)
Provider ESAB-AS, SE
Data source: rdap (0.1s)
A+
HTTP Probe Timing
Total 338 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
85 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
83 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
86 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
338 ms
Total Time Total request time from DNS lookup through full response.
338 ms

Connection waterfall

DNS Lookup 85 ms TCP Connect 83 ms TLS Handshake 86 ms Server Processing 84 ms Content Transfer 0 ms
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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