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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Santa Clara, United States
200 OK
Checks
9
6 PASS 2 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::6812:1daa, 2606:4700::6812:1caa
Info::
IPv6 connection error
Got: dial tcp6 [2606:4700::6812:1daa]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2606:4700::6812:1daa, 2606:4700::6812:1caa 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: 2497 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 2497 B Sitemaps referenced 0 User-agents magpie-crawler, ClaudeBot, Diffbot, ImagesiftBot, AhrefsBot, SemrushBot, MJ12bot, Applebot-Extended, CCBot, ChatGPT-User, FacebookBot, Seekr, Bytespider, Awario*, Amazonbot, GPTBot, NeevaBot, PerplexityBot, scoop.it, cohere-ai, img2dataset, Meltwater, omgili*, PiplBot, YouBot, meta-externalagent, anthropic-ai, Claude*, peer39_crawler, *, Applebot, DataForSeoBot, FriendlyCrawler 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: GPTBot

Disallow: /


User-agent: meta-externalagent

Disallow: /


# END Cloudflare Managed Content



# Block specific bots

User-agent: Amazonbot

User-agent: anthropic-ai

User-agent: Applebot

User-agent: Awario*

User-agent: Bytespider

User-agent: CCBot

User-agent: ChatGPT-User

User-agent: Claude*

User-agent: cohere-ai

User-agent: DataForSeoBot

User-agent: Diffbot

User-agent: FacebookBot

User-agent: FriendlyCrawler

User-agent: GPTBot

User-agent: img2dataset

User-agent: ImagesiftBot

User-agent: magpie-crawler

User-agent: Meltwater

User-agent: NeevaBot

User-agent: omgili*

User-agent: peer39_crawler

User-agent: PerplexityBot

User-agent: PiplBot

User-agent: scoop.it

User-agent: Seekr

User-agent: YouBot

User-agent: meta-externalagent

User-agent: AhrefsBot

User-agent: SemrushBot

User-agent: MJ12bot

Disallow: /


# Allow other bots by default

User-agent: *

Disallow: 
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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

Certificate validity

48
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
A+
DNS Records
2 A records, 7 ms lookup
PASS
2 A records, 7 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.18.29.170, 104.18.28.170
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700::6812:1daa, 2606:4700::6812:1caa
Info::
2 nameserver(s) configured
Got: jessica.ns.cloudflare.com, pablo.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: 7 ms
Got: 7 ms
A104.18.29.170, 104.18.28.170
AAAA2606:4700::6812:1daa, 2606:4700::6812:1caa
CNAME
NSjessica.ns.cloudflare.com, pablo.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 aspmx.l.google.com
10 aspmx3.googlemail.com
TXT
02820c5918514ca193ce8b93cc1434f9
680c5ce09e3441c69047611efe4faeb7
google-site-verification=GY2EquT6RygFicvqg_7BosDGBqBcNMKoBfCp9TCMW8A
SPF v=spf1 include:amazonses.com include:_spf.google.com ~all
CAALookup not available with standard resolver
Resolved in 7 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://tvtropes.org

https://tvtropes.org

36 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://tvtropes.org20036 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.tvtropes.org/
200https://tvtropes.org/

Preferred variant: non-www

HTTP → HTTPS

301http://tvtropes.org/ https://tvtropes.org/

Consistent

A+
Domain Intelligence
tvtropes.org — via eNom, LLC, 21 years, 4 months old, hosted on Cloudflare
PASS
tvtropes.org — via eNom, LLC, 21 years, 4 months old, hosted on Cloudflare
Info::
Domain registered until Apr 1, 2028 (1 years, 11 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: eNom, LLC
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

623 days

April 1, 2028

SSL certificate

48 days

Issued by Let's Encrypt

Domain age

21 years, 4 months

Registered April 1, 2005

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS13335

104.18.29.170

Registrar

eNom, LLC

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 eNom, LLC
Created April 1, 2005 (21 years, 4 months ago)
Expires April 1, 2028 (1 years, 11 months)
Last Updated July 23, 2025
Name Servers jessica.ns.cloudflare.com, pablo.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 104.18.29.170
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.
7 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.
9 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
35 ms
Total Time Total request time from DNS lookup through full response.
37 ms

Connection waterfall

DNS Lookup 7 ms TCP Connect 3 ms TLS Handshake 9 ms Server Processing 16 ms Content Transfer 1 ms
A+
CDN & Delivery
Cloudflare (HIT)
PASS
Cloudflare (HIT)
Info::
Site is served via Cloudflare CDN (edge: SJC)
Got: cf-ray: 9effee7b6fdec4f3-SJC
Info::
CDN cache status: HIT
CDN Detected: Cloudflare
Provider Cloudflare Cache Status HIT Evidence cf-ray: 9effee7b6fdec4f3-SJC
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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