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 Santa Clara, United States

200 OK

Checks

7 PASS 9 REVIEW 1 FIX

IPv6 Readiness

Action

IPv6 records exist but unreachable

FIX

IPv6 records exist but unreachable

IPv6 DNS records exist but server is not reachable

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Got: 2606:4700:3037::6815:4082, 2606:4700:3035::ac43:b9d6

IPv6 connection error

Got: dial tcp6 [2606:4700:3037::6815:4082]:443: connect: network is unreachable

IPv6 Misconfigured

AAAA Records 2606:4700:3037::6815:4082, 2606:4700:3035::ac43:b9d6 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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

Action

0/4 IPs match cert SAN

REVIEW

0/4 IPs match cert SAN

PTR lookup failed for 104.21.64.130: lookup 104.21.64.130: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 172.67.185.214: lookup 172.67.185.214: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 2606:4700:3037::6815:4082: lookup 2606:4700:3037::6815:4082: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

PTR lookup failed for 2606:4700:3035::ac43:b9d6: lookup 2606:4700:3035::ac43:b9d6: no such host

No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.

HTTP Probe Timing

Total 855 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

REVIEW

DNS Lookup

32 ms

TCP Connect

5 ms

TLS Handshake

16 ms

Time to First Byte

757 ms

Total Time

856 ms

Connection waterfall

DNS Lookup 32 ms TCP Connect 5 ms TLS Handshake 16 ms Server Processing 704 ms Content Transfer 99 ms

TLS Certificate Expiry & Recommendations

81 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

Submit your domain to hstspreload.org to be added to the Chrome preload list
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

CDN & Delivery

Cloudflare

REVIEW

Cloudflare

Document is served via Cloudflare CDN (edge: SJC)

Got: cf-ray: a3d155059b263911-SJC

Document served via CDN: Cloudflare

Provider Cloudflare Evidence cf-ray: a3d155059b263911-SJC

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.

Health Check Endpoint

No conventional health endpoint found

REVIEW

No conventional health endpoint found

Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.

A+

DNS Records

2 A records, 26 ms lookup

PASS

2 A records, 26 ms lookup

Resolves to 2 IPv4 address(es)

Got: 104.21.64.130, 172.67.185.214

Has 2 IPv6 (AAAA) record(s)

Got: 2606:4700:3037::6815:4082, 2606:4700:3035::ac43:b9d6

2 nameserver(s) configured

Got: lee.ns.cloudflare.com, liberty.ns.cloudflare.com

3 mail exchanger(s) configured

SPF record present in TXT

DNS resolution time: 26 ms

Got: 26 ms

A	104.21.64.130, 172.67.185.214
AAAA	2606:4700:3037::6815:4082, 2606:4700:3035::ac43:b9d6
CNAME	—
NS	lee.ns.cloudflare.com, liberty.ns.cloudflare.com
MX	15 route3.mx.cloudflare.net 75 route2.mx.cloudflare.net 77 route1.mx.cloudflare.net
TXT	google-site-verification=VIcrgY3csA8g93IqwNztI7QhbQzUKZXQ-Xs5EXm9hPI SPF v=spf1 include:spf.efwd.registrar-servers.com include:_spf.mx.cloudflare.net ~al... yandex-verification: 9cf7b5d44cb7b247
CAA	Lookup not available with standard resolver

Resolved in 26 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 14ms across 3 resolvers (spread 12ms)

PASS

Mean 14ms across 3 resolvers (spread 12ms)

Cloudflare: 8ms

Got: 8ms via 1.1.1.1:53

Quad9: 14ms

Got: 14ms via 9.9.9.9:53

Google: 20ms

Got: 20ms via 8.8.8.8:53

A+

Redirect Chain

No redirects — direct access

PASS

No redirects — direct access

Got: https://kling5.art

https://kling5.art

120 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://kling5.art	200	120 ms	HTTP/1.1	cloudflare

A+

Crawlability

robots.txt present, sitemap with 70 URLs

PASS

robots.txt present, sitemap with 70 URLs

robots.txt is present

Got: 10240 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 70 entries

robots.txt does not reference a sitemap

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK

Size 10240 B Sitemaps referenced 0 User-agents *, GPTBot, ChatGPT-User, OAI-SearchBot Blocking No — crawling allowed

User-Agent: *
Allow: /
Disallow: /api/
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /sign-in
Disallow: /sign-in/
Disallow: /sign-up
Disallow: /sign-up/
Disallow: /forgot-password
Disallow: /forgot-password/
Disallow: /reset-password
Disallow: /reset-password/
Disallow: /verify-email
Disallow: /verify-email/
Disallow: /redeem-invite
Disallow: /redeem-invite/
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-in/
Disallow: /zh/sign-up
Disallow: /zh/sign-up/
Disallow: /zh/forgot-password
Disallow: /zh/forgot-password/
Disallow: /zh/reset-password
Disallow: /zh/reset-password/
Disallow: /zh/verify-email
Disallow: /zh/verify-email/
Disallow: /zh/redeem-invite
Disallow: /zh/redeem-invite/
Disallow: /ja/admin
Disallow: /ja/admin/
Disallow: /ja/settings
Disallow: /ja/settings/
Disallow: /ja/sign-in
Disallow: /ja/sign-in/
Disallow: /ja/sign-up
Disallow: /ja/sign-up/
Disallow: /ja/forgot-password
Disallow: /ja/forgot-password/
Disallow: /ja/reset-password
Disallow: /ja/reset-password/
Disallow: /ja/verify-email
Disallow: /ja/verify-email/
Disallow: /ja/redeem-invite
Disallow: /ja/redeem-invite/
Disallow: /de/admin
Disallow: /de/admin/
Disallow: /de/settings
Disallow: /de/settings/
Disallow: /de/sign-in
Disallow: /de/sign-in/
Disallow: /de/sign-up
Disallow: /de/sign-up/
Disallow: /de/forgot-password
Disallow: /de/forgot-password/
Disallow: /de/reset-password
Disallow: /de/reset-password/
Disallow: /de/verify-email
Disallow: /de/verify-email/
Disallow: /de/redeem-invite
Disallow: /de/redeem-invite/
Disallow: /fr/admin
Disallow: /fr/admin/
Disallow: /fr/settings
Disallow: /fr/settings/
Disallow: /fr/sign-in
Disallow: /fr/sign-in/
Disallow: /fr/sign-up
Disallow: /fr/sign-up/
Disallow: /fr/forgot-password
Disallow: /fr/forgot-password/
Disallow: /fr/reset-password
Disallow: /fr/reset-password/
Disallow: /fr/verify-email
Disallow: /fr/verify-email/
Disallow: /fr/redeem-invite
Disallow: /fr/redeem-invite/
Disallow: /it/admin
Disallow: /it/admin/
Disallow: /it/settings
Disallow: /it/settings/
Disallow: /it/sign-in
Disallow: /it/sign-in/
Disallow: /it/sign-up
Disallow: /it/sign-up/
Disallow: /it/forgot-password
Disallow: /it/forgot-password/
Disallow: /it/reset-password
Disallow: /it/reset-password/
Disallow: /it/verify-email
Disallow: /it/verify-email/
Disallow: /it/redeem-invite
Disallow: /it/redeem-invite/
Disallow: /es/admin
Disallow: /es/admin/
Disallow: /es/settings
Disallow: /es/settings/
Disallow: /es/sign-in
Disallow: /es/sign-in/
Disallow: /es/sign-up
Disallow: /es/sign-up/
Disallow: /es/forgot-password
Disallow: /es/forgot-password/
Disallow: /es/reset-password
Disallow: /es/reset-password/
Disallow: /es/verify-email
Disallow: /es/verify-email/
Disallow: /es/redeem-invite
Disallow: /es/redeem-invite/
Disallow: /pt-BR/admin
Disallow: /pt-BR/admin/
Disallow: /pt-BR/settings
Disallow: /pt-BR/settings/
Disallow: /pt-BR/sign-in
Disallow: /pt-BR/sign-in/
Disallow: /pt-BR/sign-up
Disallow: /pt-BR/sign-up/
Disallow: /pt-BR/forgot-password
Disallow: /pt-BR/forgot-password/
Disallow: /pt-BR/reset-password
Disallow: /pt-BR/reset-password/
Disallow: /pt-BR/verify-email
Disallow: /pt-BR/verify-email/
Disallow: /pt-BR/redeem-invite
Disallow: /pt-BR/redeem-invite/

User-Agent: GPTBot
Allow: /
Disallow: /api/
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /sign-in
Disallow: /sign-in/
Disallow: /sign-up
Disallow: /sign-up/
Disallow: /forgot-password
Disallow: /forgot-password/
Disallow: /reset-password
Disallow: /reset-password/
Disallow: /verify-email
Disallow: /verify-email/
Disallow: /redeem-invite
Disallow: /redeem-invite/
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-in/
Disallow: /zh/sign-up
Disallow: /zh/sign-up/
Disallow: /zh/forgot-password
Disallow: /zh/forgot-password/
Disallow: /zh/reset-password
Disallow: /zh/reset-password/
Disallow: /zh/verify-email
Disallow: /zh/verify-email/
Disallow: /zh/redeem-invite
Disallow: /zh/redeem-invite/
Disallow: /ja/admin
Disallow: /ja/admin/
Disallow: /ja/settings
Disallow: /ja/settings/
Disallow: /ja/sign-in
Disallow: /ja/sign-in/
Disallow: /ja/sign-up
Disallow: /ja/sign-up/
Disallow: /ja/forgot-password
Disallow: /ja/forgot-password/
Disallow: /ja/reset-password
Disallow: /ja/reset-password/
Disallow: /ja/verify-email
Disallow: /ja/verify-email/
Disallow: /ja/redeem-invite
Disallow: /ja/redeem-invite/
Disallow: /de/admin
Disallow: /de/admin/
Disallow: /de/settings
Disallow: /de/settings/
Disallow: /de/sign-in
Disallow: /de/sign-in/
Disallow: /de/sign-up
Disallow: /de/sign-up/
Disallow: /de/forgot-password
Disallow: /de/forgot-password/
Disallow: /de/reset-password
Disallow: /de/reset-password/
Disallow: /de/verify-email
Disallow: /de/verify-email/
Disallow: /de/redeem-invite
Disallow: /de/redeem-invite/
Disallow: /fr/admin
Disallow: /fr/admin/
Disallow: /fr/settings
Disallow: /fr/settings/
Disallow: /fr/sign-in
Disallow: /fr/sign-in/
Disallow: /fr/sign-up
Disallow: /fr/sign-up/
Disallow: /fr/forgot-password
Disallow: /fr/forgot-password/
Disallow: /fr/reset-password
Disallow: /fr/reset-password/
Disallow: /fr/verify-email
Disallow: /fr/verify-email/
Disallow: /fr/redeem-invite
Disallow: /fr/redeem-invite/
Disallow: /it/admin
Disallow: /it/admin/
Disallow: /it/settings
Disallow: /it/settings/
Disallow: /it/sign-in
Disallow: /it/sign-in/
Disallow: /it/sign-up
Disallow: /it/sign-up/
Disallow: /it/forgot-password
Disallow: /it/forgot-password/
Disallow: /it/reset-password
Disallow: /it/reset-password/
Disallow: /it/verify-email
Disallow: /it/verify-email/
Disallow: /it/redeem-invite
Disallow: /it/redeem-invite/
Disallow: /es/admin
Disallow: /es/admin/
Disallow: /es/settings
Disallow: /es/settings/
Disallow: /es/sign-in
Disallow: /es/sign-in/
Disallow: /es/sign-up
Disallow: /es/sign-up/
Disallow: /es/forgot-password
Disallow: /es/forgot-password/
Disallow: /es/reset-password
Disallow: /es/reset-password/
Disallow: /es/verify-email
Disallow: /es/verify-email/
Disallow: /es/redeem-invite
Disallow: /es/redeem-invite/
Disallow: /pt-BR/admin
Disallow: /pt-BR/admin/
Disallow: /pt-BR/settings
Disallow: /pt-BR/settings/
Disallow: /pt-BR/sign-in
Disallow: /pt-BR/sign-in/
Disallow: /pt-BR/sign-up
Disallow: /pt-BR/sign-up/
Disallow: /pt-BR/forgot-password
Disallow: /pt-BR/forgot-password/
Disallow: /pt-BR/reset-password
Disallow: /pt-BR/reset-password/
Disallow: /pt-BR/verify-email
Disallow: /pt-BR/verify-email/
Disallow: /pt-BR/redeem-invite
Disallow: /pt-BR/redeem-invite/

User-Agent: ChatGPT-User
Allow: /
Disallow: /api/
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /sign-in
Disallow: /sign-in/
Disallow: /sign-up
Disallow: /sign-up/
Disallow: /forgot-password
Disallow: /forgot-password/
Disallow: /reset-password
Disallow: /reset-password/
Disallow: /verify-email
Disallow: /verify-email/
Disallow: /redeem-invite
Disallow: /redeem-invite/
Disallow: /zh/admin
Disallow: /zh/admin/
Disallow: /zh/settings
Disallow: /zh/settings/
Disallow: /zh/sign-in
Disallow: /zh/sign-in/
Disallow: /zh/sign-up
Disallow: /zh/sign-up/
Disallow: /zh/forgot-password
Disallow: /zh/forgot-password/
Disallow: /zh/reset-password
Disallow: /zh/reset-password/
Disallow: /zh/verify-email
Disallow: /zh/verify-email/
Disallow: /zh/redeem-invite
Disallow: /zh/redeem-invite/
Disallow: /ja/admin
Disallow: /ja/admin/
Disallow: /ja/settings
Disallow: /ja/settings/
Disallow: /ja/sign-in
Disallow: /ja/sign-in/
Disallow: /ja/sign-up
Disallow: /ja/sign-up/
Disallow: /ja/forgot-password
Disallow: /ja/forgot-password/
Disallow: /ja/reset-password
Disallow: /ja/reset-password/
Disallow: /ja/verify-email
Disallow: /ja/verify-email/
Disallow: /ja/redeem-invite
Disallow: /ja/redeem-invite/
Disallow: /de/admin
Disallow: /de/admin/
Disallow: /de/settings
Disallow: /de/settings/
Disallow: /de/sign-in
Disallow: /de/sign-in/
Disallow: /de/sign-up
Disallow: /de/sign-up/
Disallow: /de/forgot-password
Disallow: /de/forgot-password/
Disallow: /de/reset-password
Disallow: /de/reset-password/
Disallow: /de/verify-email
Disallow: /de/verify-email/
Disallow: /de/redeem-invite
Disallow: /de/redeem-invite/
Disallow: /fr/admin
Disallow: /fr/admin/
Disallow: /fr/settings
Disallow: /fr/settings/
Disallow: /fr/sign-in
Disallow: /fr/sign-in/
Disallow: /fr/sign-up
Disallow: /fr/sign-up/
Disallow: /fr/forgot-password
Disallow: /fr/forgot-password/
Disallow: /fr/reset-password
Disallow: /fr/reset-password/
Disallow: /fr/verify-email
Disallow: /fr/verify-email/
Disallow: /fr/redeem-invite
Disallow: /fr/redeem-invite/
Disallow: /it/admin
Disallow: /it/admin/
Disallow: /it/settings
Disallow: /it/settings/
Disallow: /it/sign-in
Disallow: /it/sign-in/
Disallow: /it/sign-up
Disallow: /it/sign-up/
Disallow: /it/forgot-password
Disallow: /it/forgot-password/
Disallow: /it/reset-password
Disallow: /it/reset-password/
Disallow: /it/verify-email
Disallow: /it/verify-email/
Disallow: /it/redeem-invite
Disallow: /it/redeem-invite/
Disallow: /es/admin
Disallow: /es/admin/
Disallow: /es/settings
Disallow: /es/settings/
Disallow: /es/sign-in
Disallow: /es/sign-in/
Disallow: /es/sign-up
Disallow: /es/sign-up/
Disallow: /es/forgot-password
Disallow: /es/forgot-password/
Disallow: /es/reset-password
Disallow: /es/reset-password/
Disallow: /es/verify-email
Disallow: /es/verify-email/
Disallow: /es/redeem-invite
Disallow: /es/redeem-invite/
Disallow: /pt-BR/admin
Disallow: /pt-BR/admin/
Disallow: /pt-BR/settings
Disallow: /pt-BR/settings/
Disallow: /pt-BR/sign-in
Disallow: /pt-BR/sign-in/
Disallow: /pt-BR/sign-up
Disallow: /pt-BR/sign-up/
Disallow: /pt-BR/forgot-password
Disallow: /pt-BR/forgot-password/
Disallow: /pt-BR/reset-password
Disallow: /pt-BR/reset-password/
Disallow: /pt-BR/verify-email
Disallow: /pt-BR/verify-email/
Disallow: /pt-BR/redeem-invite
Disallow: /pt-BR/redeem-invite/

User-Agent: OAI-SearchBot
Allow: /
Disallow: /api/
Disallow: /admin
Disallow: /admin/
Disallow: /settings
Disallow: /settings/
Disallow: /sign-in
Disallow: /sign-in/
Disallow: /sign-up
Disallow: /sign-up/
Disallow: /forgot-password
Disallow: /forgot-password/
Disa

sitemap.xml 200 OK

Type URL Set URLs 70 entries Valid XML Yes

Sample URLs:

A+

URL Variants

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

PASS

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

www/non-www redirect configured correctly (preferred: non-www)

HTTP correctly redirects to HTTPS permanently

Got: HTTP 301

www / non-www

301https://www.kling5.art/

200https://kling5.art/

Preferred variant: non-www

HTTP → HTTPS

301http://kling5.art/ → https://kling5.art/

Consistent

A+

Domain Intelligence

kling5.art — via NameCheap, Inc., 6 months old, hosted on Cloudflare

PASS

kling5.art — via NameCheap, Inc., 6 months old, hosted on Cloudflare

Domain registered until Mar 16, 2027 (5 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: NameCheap, Inc.

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: Cloudflare

Got: AS13335

Domain expiry

174 days

March 16, 2027

SSL certificate

81 days

Issued by Google Trust Services

Domain age

6 months

Registered March 16, 2026

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS13335

104.21.64.130

Registrar

NameCheap, Inc.

Unlocked 2 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 NameCheap, Inc.

Created March 16, 2026 (6 months ago)

Expires March 16, 2027 (5 months)

Last Updated April 1, 2026

Name Servers lee.ns.cloudflare.com, liberty.ns.cloudflare.com

DNSSEC Not enabled

Hosting

IP Address 104.21.64.130

ASN AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

Provider Cloudflare

Data source: rdap (0.8s)

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

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