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https://join.chat

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 Santa Clara, United States
403 Forbidden
Checks
9
5 PASS 3 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
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: 2606:4700:3030::6815:1415, 2606:4700:3033::ac43:bed9
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700:3030::6815:1415]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2606:4700:3030::6815:1415, 2606:4700:3033::ac43:bed9 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)

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 1738 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

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 1738 B Sitemaps referenced 0 User-agents *, Amazonbot, Applebot-Extended, Bytespider, ClaudeBot, CloudflareBrowserRenderingCrawler, GPTBot, CCBot, Google-Extended, meta-externalagent Blocking No — crawling allowed
# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the corresponding use.

# The content signals and their meanings are:

# search:   building a search index and providing search results (e.g., returning
#           hyperlinks and short excerpts from your website's contents). Search does not
#           include providing AI-generated search summaries.
# ai-input: inputting content into one or more AI models (e.g., retrieval
#           augmented generation, grounding, or other real-time taking of content for
#           generative AI search answers).
# ai-train: training or fine-tuning AI models.

# ANY RESTRICTIONS EXPRESSED VIA CONTENT SIGNALS ARE EXPRESS RESERVATIONS OF
# RIGHTS UNDER ARTICLE 4 OF THE EUROPEAN UNION DIRECTIVE 2019/790 ON COPYRIGHT
# AND RELATED RIGHTS IN THE DIGITAL SINGLE MARKET.

# BEGIN Cloudflare Managed content

User-agent: *
Content-Signal: search=yes,ai-train=no
Allow: /

User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: CloudflareBrowserRenderingCrawler
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: meta-externalagent
Disallow: /

# END Cloudflare Managed Content


sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
TLS Certificate Expiry & Recommendations
59 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

59
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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
B
CDN & Delivery
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: SJC)
Got: cf-ray: 9eff3c006e00d029-SJC
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9eff3c006e00d029-SJC
A+
DNS Records
2 A records, 16 ms lookup
PASS
2 A records, 16 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.21.20.21, 172.67.190.217
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3030::6815:1415, 2606:4700:3033::ac43:bed9
Info::
2 nameserver(s) configured
Got: kipp.ns.cloudflare.com, tori.ns.cloudflare.com
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: 16 ms
Got: 16 ms
A104.21.20.21, 172.67.190.217
AAAA2606:4700:3030::6815:1415, 2606:4700:3033::ac43:bed9
CNAME
NSkipp.ns.cloudflare.com, tori.ns.cloudflare.com
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
Sendinblue-code:5f5a1236f26efd94d7b7b59e04c2754f
google-site-verification=COAnCKH8_htLK-SlfVFmVvaj-WApIYPDi4jkRo_E1Ls
openai-domain-verification=dv-pYgzpLXYnRg4kdj8ywgpk0Jm
SPF v=spf1 a mx ip4:82.98.132.81 include:spf.mandrillapp.com include:_spf.google.com...
CAALookup not available with standard resolver
Resolved in 16 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
0 redirect(s), 38 ms total
PASS
0 redirect(s), 38 ms total

https://join.chat

38 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://join.chat40338 msHTTP/1.1cloudflare
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

403https://www.join.chat/
200https://join.chat/

HTTP → HTTPS

301http://join.chat/ https://join.chat/

Consistent

A+
Domain Intelligence
join.chat — via Name.com, Inc., 6 years, 2 months old, hosted on Cloudflare
PASS
join.chat — via Name.com, Inc., 6 years, 2 months old, hosted on Cloudflare
Info::
Domain registered until Mar 16, 2027 (10 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: Name.com, Inc.
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: Cloudflare
Got: AS13335
Domain expiry

243 days

March 16, 2027

SSL certificate

59 days

Issued by Google Trust Services

Domain age

6 years, 2 months

Registered March 16, 2020

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS13335

104.21.20.21

Registrar

Name.com, 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 Name.com, Inc.
Created March 16, 2020 (6 years, 2 months ago)
Expires March 16, 2027 (10 months)
Last Updated February 27, 2026
Name Servers tori.ns.cloudflare.com, kipp.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 104.21.20.21
ASN AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
Provider Cloudflare
Data source: rdap (0.2s)

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

Connection waterfall

DNS Lookup 10 ms TCP Connect 3 ms TLS Handshake 11 ms Server Processing 12 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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