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https://linktr.ee

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
6 PASS 3 REVIEW
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

C
Crawlability
Action
robots.txt present, sitemap with 1 URLs
REVIEW
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 2883 bytes
Critical::
robots.txt blocks all crawlers
Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
Sitemap index with 1 child sitemaps
Info::
robots.txt references sitemap

Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.

Why this matters

Disallow: / in robots.txt blocks every search crawler — the site becomes invisible in organic search.

Learn more ▾

Common deployment mistake: a staging robots.txt with `User-agent: * / Disallow: /` ships to prod. The site falls out of search results within days. Verify your robots.txt is the production-intended version. If this is intentional (private site), no action needed.

Source: Google Search Central

robots.txt 200 OK
Size 2883 B Sitemaps referenced 7 User-agents ChatGPT-User/2.0, Claude-SearchBot, NotebookLM, baiduspider, Googlebot, Naverbot, SemrushBot, Amazonbot, ShapBot, DuckAssistBot, seznambot, TelegramBot, Twitterbot, GPTBot, Claude-User, Claude-Web, Perplexity-User, Google-CloudVertexBot, teoma, OAI-SearchBot, MistralAI-User, Google, Google-NotebookLM, Gemini-Deep-Research, AmazonBuyForMe, facebookexternalhit, msnbot, Meta-ExternalFetcher, NovaAct, Cloudflare-AutoRAG, Yeti, OpenAI, MistralAI-User/1.0, GoogleAgent-Mariner, amazon-kendra, KlaviyoAIBot, Bravebot, *, ia_archiver, Yandex, Devin, ChatGPT Agent, Applebot, Discordbot, Google-InspectionTool, Screaming Frog SEO Spider, SnapchatAdsBot, ChatGPT-User, atlassian-bot, Bingbot, Googlebot-Image, LinkedInBot, Pinterestbot, Slurp Blocking Yes — all crawlers blocked


User-agent: Applebot
Disallow: /admin

User-agent: baiduspider
Disallow: /admin

User-agent: Bingbot
Disallow: /admin

User-agent: Discordbot
Disallow: /admin

User-agent: facebookexternalhit
Disallow: /admin

User-agent: Googlebot
Disallow: /admin

User-agent: Googlebot-Image
Disallow: /admin

User-agent: Google-InspectionTool
Disallow: /admin

User-agent: ia_archiver
Disallow: /admin

User-agent: LinkedInBot
Disallow: /admin

User-agent: msnbot
Disallow: /admin

User-agent: Naverbot
Disallow: /admin

User-agent: Pinterestbot
Disallow: /admin

User-agent: Screaming Frog SEO Spider
Disallow: /admin

User-agent: seznambot
Disallow: /admin

User-agent: Slurp
Disallow: /admin

User-agent: teoma
Disallow: /admin

User-agent: TelegramBot
Disallow: /admin

User-agent: Twitterbot
Disallow: /admin

User-agent: Yandex
Disallow: /admin

User-agent: Yeti
Disallow: /admin

User-agent: SnapchatAdsBot
Disallow: /admin

User-agent: SemrushBot
Disallow: /admin

# OpenAI
User-agent: OAI-SearchBot
Disallow: /admin

User-agent: ChatGPT-User
Disallow: /admin

User-agent: ChatGPT-User/2.0
Disallow: /admin

User-agent: ChatGPT Agent
Disallow: /admin

User-agent: OpenAI
Disallow: /admin

User-agent: GPTBot
Disallow: /

# Anthropic
User-agent: Claude-SearchBot
Disallow: /admin

User-agent: Claude-User
Disallow: /admin

User-agent: Claude-Web
Disallow: /admin

# Perplexity
User-agent: Perplexity-User
Disallow: /admin

# Mistral
User-agent: MistralAI-User
Disallow: /admin

User-agent: MistralAI-User/1.0
Disallow: /admin

# Meta
User-agent: Meta-ExternalFetcher
Disallow: /admin

# Google
User-agent: Google
Disallow: /admin

User-agent: Google-NotebookLM
Disallow: /admin

User-agent: NotebookLM
Disallow: /admin

User-agent: Gemini-Deep-Research
Disallow: /admin

User-agent: GoogleAgent-Mariner
Disallow: /admin

User-agent: Google-CloudVertexBot
Disallow: /admin

# Amazon
User-agent: Amazonbot
Disallow: /admin

User-agent: amazon-kendra
Disallow: /admin

User-agent: AmazonBuyForMe
Disallow: /admin

User-agent: NovaAct
Disallow: /admin

# Misc AI Bots
User-agent: atlassian-bot
Disallow: /admin

User-agent: Cloudflare-AutoRAG
Disallow: /admin

User-agent: KlaviyoAIBot
Disallow: /admin

User-agent: ShapBot
Disallow: /admin

User-agent: Bravebot
Disallow: /admin

User-agent: DuckAssistBot
Disallow: /admin

User-agent: Devin
Disallow: /admin

# Fallback, disallow scraping
User-agent: *
Disallow: /

Sitemap: https://linktr.ee/discover/profile-directory/sitemapindex.xml
Sitemap: https://linktr.ee/s/sitemap-0.xml
Sitemap: https://linktr.ee/marketplace/sitemap.xml
Sitemap: https://linktr.ee/recent.sitemapindex.profiles.b95c13c7ed9f220b7aa7.xml
Sitemap: https://linktr.ee/share-link-preview-v2.sitemapindex.profiles.b95c13c7ed9f220b7aa7.xml
Sitemap: https://linktr.ee/high_value.sitemapindex.profiles.b95c13c7ed9f220b7aa7.xml
Sitemap: https://linktr.ee/s/wf/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 1 entries Valid XML Yes
Child Sitemaps:
B
TLS Certificate Expiry & Recommendations
44 days until leaf cert expires — 6 issues to address
REVIEW

Certificate validity

44
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • 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 Records
4 A records, 125 ms lookup
PASS
4 A records, 125 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.194.133, 151.101.130.133, 151.101.66.133, 151.101.2.133
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1534.awsdns-63.org, ns-634.awsdns-15.net, ns-169.awsdns-21.com, ns-1782.awsdns-30.co.uk
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: 125 ms
Got: 125 ms
A151.101.194.133, 151.101.130.133, 151.101.66.133, 151.101.2.133
AAAA—
CNAME—
NSns-1534.awsdns-63.org, ns-634.awsdns-15.net, ns-169.awsdns-21.com, ns-1782.awsdns-30.co.uk
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 alt3.aspmx.l.google.com
TXT
google-site-verification=M0XDPVdF5XBrnb-68KdBWmKi35ovRf_PqZM6zRj6xfo
openai-domain-verification=dv-PfCKEtIOkYIRSjuyixJqqZcf
zoom-domain-verification=ZOOM_verify_3d500f8c401c445e9cc337e189236ef5
uber-domain-verification=88d7ba7b-2a23-42ae-ba4f-e96706f6b728
google-site-verification=JnB4sONl0K7d3wGyRs9an0C0VJFVhhmGSjf5diV790k
t252Y1nfZvxjX0093cC7cncQHg
SPF v=spf1 include:sendgrid.net include:hs.linktr.ee include:_spf.google.com -all
google-site-verification=c_BBAAGdYj2L7cOpPgNF76jiXnFUVS_Xz5gfcBOmGL4
onetrust-domain-verification=e0ec11d4d77546b791a0f946a32a6c1e
stripe-verification=61B436C0036D8172284A969CE10CED7FFF67D38B204B51F49A0A2C3D3C65...
notion_verify_LZm1CNzi_RmH#UCV.uR1MvXKsWEG8nebvc}bw+TYMj)mzgrf33H1tUkj*g@r37^#nu...
stripe-verification=58C8428D5C7E162ADE166B3F34072EC21AA64FE97D46970CC352FAB198CC...
stripe-verification=85AF8598246098631ED129FA3218F6C4DA2CFEC57DD8A9F080110B8CA399...
amazon-business-verification=16012857de4a76553695df824bae16348649f39cf989c2354b5...
tiktok-developers-site-verification=5TpDHtevdeyto1s53FrggeA4rqLMU34r
attio-domain-verification=UHX2B6D5TX6CX53CXGBAHGW3
h1-domain-verification=HDHQ9deSLqK9KYahSa9UU559PvrgNBi3T1zdN9Lj8CVoYCV8
facebook-domain-verification=8ssyxgwhdjg409vl1qwv8tqy6745zy
google-site-verification=ictM7BaxKAXWoNxeAH2qUWzbIWwUZT0krATNluy2hwg
google-site-verification=tOpEoiVk37-4HaCFCMb86Q2F9zpl4gh0cF9PvQjJ5aw
slack-domain-verification=62Jx5SGkgzgdLmF6mYPo1oWMHoLI1PGqzxt71dYk
stripe-verification=731DF94DEAEA1EAAA807EAE7D72D7338E193CD76AE97150ECF41896807B1...
stripe-verification=15f31e50c5710252111569ad76dfd30414dfe84321fddd6fb2f7cf42ced4...
stripe-verification=28e5f4ef1feaccb632b7affa6996c5fd43b1e4fafe6b87fe7fa34543a77f...
dropbox-domain-verification=831j6zm4fvfj
google-site-verification=J_OCvoB105vcwDCwwO0xZlxvWZLz6-UzS4UssSeiy-U
tiktok-developers-site-verification=HhSSn99SRimgJNJJkcm0Rt0tjhOiMLW5
stripe-verification=0AB4346953316F0622DA92E369CDFA951C54E959A15CC1CFB96E49D02E20...
google-site-verification=oJ0isC1gRFlJdV5L_p5ObuVX0JCcyzPQ2N4FcdFSY-c
google-site-verification=BqwBT-jSv9iENaqGfI_gbooYEjs3uUHh-lXpVf8tkJk
Validity-Domain-Verification=6HrSbK1DTz+C/kYrvt2yxBW93F4=
google-site-verification=-3XY-ldZZm2O8v9blT-mMiBduUxNdPsrrFXneZFHJNU
google-site-verification=5_2gPClKT1kQHILAWOrq9g-MDZQpYTvUvAMV5lADcHU
ZOOM_verify_FEdjcGCXQD7LtbPD7NDAPO
hubspot-domain-verification=MTQzMjVkY2EtZDc5YS00ZmMwLTgzNmMtODJhZWFhNjQ1MTFi
anthropic-domain-verification-1tycht=zJnYXvMUrBuyoLB4eKC6V1Wav
loom-site-verification=1c1e2086449545d190b57b810de3c741
MS=ms25160908
wiz-domain-verification=993ae6f241de2f53ea30277e8fb8042709252ec68b523cf26181b4cb...
CAALookup not available with standard resolver
Resolved in 125 ms

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+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://linktr.ee

https://linktr.ee

23 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://linktr.ee20023 msHTTP/1.1cloudflare
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: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.linktr.ee/
200https://linktr.ee/

Preferred variant: non-www

HTTP → HTTPS

301http://linktr.ee/ → https://linktr.ee/

Consistent

A+
Domain Intelligence
linktr.ee — via Zone Media OÜ, hosted on Fastly
PASS
linktr.ee — via Zone Media OÜ, hosted on Fastly
Info::
Domain registered until Mar 9, 2027 (10 months remaining)
Info::
Registrar: Zone Media OÜ
Warning::
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.
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

268 days

March 9, 2027

SSL certificate

44 days

Issued by Let's Encrypt

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.2.133

Registrar

Zone Media OÜ

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Zone Media OÜ
Expires March 9, 2027 (10 months)
Name Servers ns-634.awsdns-15.net, ns-1782.awsdns-30.co.uk, ns-1534.awsdns-63.org, ns-169.awsdns-21.com
Hosting
IP Address 151.101.2.133
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: whois (0.8s)

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

A+
HTTP Probe Timing
Total 45 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
22 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
3 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
44 ms
Total Time Total request time from DNS lookup through full response.
46 ms

Connection waterfall

DNS Lookup 22 ms TCP Connect 0 ms TLS Handshake 3 ms Server Processing 19 ms Content Transfer 1 ms
A
CDN & Delivery
Cloudflare (MISS)
PASS
Cloudflare (MISS)
Info::
Site is served via Cloudflare CDN (edge: SEA)
Got: cf-ray: 9ed478ec1a3875ba-SEA
Info::
CDN cache status: MISS
CDN Detected: Cloudflare
Provider Cloudflare Cache Status MISS Evidence cf-ray: 9ed478ec1a3875ba-SEA
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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