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https://teletype.in

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
99
GRADE
A+
FIX
0
REVIEW
1
PASS
8
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
8 PASS 1 REVIEW
B
TLS Certificate Expiry & Recommendations
67 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

67
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
  • 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
3 A records, 35 ms lookup
PASS
3 A records, 35 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 104.26.6.241, 172.67.68.252, 104.26.7.241
Info::
Has 3 IPv6 (AAAA) record(s)
Got: 2606:4700:20::681a:7f1, 2606:4700:20::681a:6f1, 2606:4700:20::ac43:44fc
Info::
2 nameserver(s) configured
Got: alaric.ns.cloudflare.com, kami.ns.cloudflare.com
Info::
1 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::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 35 ms
Got: 35 ms
A104.26.6.241, 172.67.68.252, 104.26.7.241
AAAA2606:4700:20::681a:7f1, 2606:4700:20::681a:6f1, 2606:4700:20::ac43:44fc
CNAME—
NSalaric.ns.cloudflare.com, kami.ns.cloudflare.com
MX
10 mx.yandex.net
TXT
yandex-verification: fc35c4429e3a5b41
google-site-verification=ndTJkaL6LFHUsk9WavaNCGpcAVM2SPF94s_22iWxXHs
CAALookup not available with standard resolver
Resolved in 35 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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://teletype.in

https://teletype.in

147 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://teletype.in200147 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (16 ms)
PASS
IPv6 reachable (16 ms)
Info::
IPv6 is configured and reachable at 2606:4700:20::681a:7f1, 2606:4700:20::681a:6f1, 2606:4700:20::ac43:44fc
Got: 16 ms connect
IPv6 Ready
AAAA Records 2606:4700:20::681a:7f1, 2606:4700:20::681a:6f1, 2606:4700:20::ac43:44fc Connection Reachable (16 ms)
A+
Crawlability
robots.txt present, sitemap with 269 URLs
PASS
robots.txt present, sitemap with 269 URLs
Info::
robots.txt is present
Got: 275 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 269 entries
Info::
Sitemap index with 269 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 275 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Sitemap: https://teletype.in/content/sitemap.xml
Disallow: /api
Disallow: /cda
Disallow: /privacy
Disallow: /login
Disallow: /restore-password
Disallow: /.*

Host: https://teletype.in

Clean-param: cda&redir&topic_id&utm_source&utm_medium&utm_term&utm_campaign
sitemap.xml 200 OK
Type Sitemap Index URLs 269 entries Valid XML Yes
Child Sitemaps:
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.teletype.in/
200https://teletype.in/

Preferred variant: non-www

HTTP → HTTPS

301http://teletype.in/ → https://teletype.in/

Consistent

A+
Domain Intelligence
teletype.in — via Key-Systems GmbH, 9 years, 6 months old
PASS
teletype.in — via Key-Systems GmbH, 9 years, 6 months old
Info::
Domain registered until Nov 23, 2028 (2 years, 7 months remaining)
Info::
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.
Info::
Registrar: Key-Systems GmbH
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.
Domain expiry

892 days

November 23, 2028

SSL certificate

67 days

Issued by Google Trust Services

Domain age

9 years, 6 months

Registered November 23, 2016

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:20::ac43:44fc

Registrar

Key-Systems GmbH

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 Key-Systems GmbH
Created November 23, 2016 (9 years, 6 months ago)
Expires November 23, 2028 (2 years, 7 months)
Last Updated November 24, 2025
Name Servers alaric.ns.cloudflare.com, kami.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:20::ac43:44fc
Data source: rdap (0.7s)

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

A+
HTTP Probe Timing
Total 149 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
44 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
16 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
37 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
149 ms
Total Time Total request time from DNS lookup through full response.
150 ms

Connection waterfall

DNS Lookup 44 ms TCP Connect 16 ms TLS Handshake 37 ms Server Processing 52 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9f0083a5de850477-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9f0083a5de850477-CDG
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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