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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 3 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

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

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.xda-developers.com/
200https://xda-developers.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://xda-developers.com/ https://www.xda-developers.com/

Consistent

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

Certificate validity

86
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
A+
DNS Records
1 A records, 36 ms lookup
PASS
1 A records, 36 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 52.5.96.96
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: ns22.digicertdns.com, ns21.digicertdns.com, ns20.digicertdns.com, ns24.digicertdns.net, ns23.digicertdns.net, ns25.digicertdns.net
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: 36 ms
Got: 36 ms
A52.5.96.96
AAAA
CNAME
NSns22.digicertdns.com, ns21.digicertdns.com, ns20.digicertdns.com, ns24.digicertdns.net, ns23.digicertdns.net, ns25.digicertdns.net
MX
10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx3.googlemail.com
30 aspmx2.googlemail.com
TXT
facebook-domain-verification=zqdfjg0fx03qad0495u1r9ebixksm1
google-site-verification=YJWL27jS4XCsS376vYShlXBULPSv9QISUVQI6XGYchM
google-site-verification=i9qzxvqvvgklBLJE4U9629ngpN9qG4GnboXvPDuzDCQ
google-site-verification=5dEWe2VJ92QC0FCSXyEg-yneBNjDjfM92SW0io0UWwg
SPF v=spf1 include:_spf.google.com include:amazonses.com include:_spf.emailcampaigns...
google-site-verification=P-3_ccHueZb55W88C-1uICQaI044464qZthDIeohauw
google-site-verification=XLhuNmB2MWcwIXYDjGFuNAOJHcSm7ZsUP1mMGgt5Z7c
CAALookup not available with standard resolver
Resolved in 36 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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
1 redirect(s), 719 ms total
PASS
1 redirect(s), 719 ms total
Info::
Single redirect
Got: https://xda-developers.com → https://www.xda-developers.com/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 719 ms total
Got: 719 ms

https://xda-developers.com

295 ms · HTTP/1.1

301

https://www.xda-developers.com/

424 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://xda-developers.com301295 msHTTP/1.1nginx
2https://www.xda-developers.com/200424 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 198 URLs
PASS
robots.txt present, sitemap with 198 URLs
Info::
robots.txt is present
Got: 2070 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 198 entries
Info::
Sitemap index with 198 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2070 B Sitemaps referenced 2 User-agents Applebot, HTTrack, anthropic-ai, cohere-ai, omgili, "008", Applebot-extended, Bytespider, CCBot, Diffbot, GPTBot, Scrapy, ChatGPT-User, Claude-Web, ClaudeBot, FacebookBot, YouBot, Offline Explorer, *, Nutch, AmazonAdBot Blocking No — crawling allowed
# Valnet content is made available for your non-commercial use subject to our
# Terms of Use here: https://www.valnetinc.com/en/terms-of-use
# Use of any robot, crawler, or other tool to scrape, harvest, extract, or retrieve any content on
# this website using automated means is prohibited without written permission from Valnet.
# Prohibited uses include but are not limited to:
# (1) text and data mining under Art. 4 of the EU Directive on Copyright in the Digital Single
# Market;
# (2) development or operation of artificial intelligence or machine learning software or
# databases, including by training, fine-tuning, embedding, and retrieval-augmented generation;
# (3) creating data sets containing our content or sharing it with others; and
# (4) any commercial purposes.
# Contact info@valnetinc.com for assistance.

User-agent: *
Disallow: /pixel.png*
Disallow: /search/
Disallow: /profile/
Disallow: /strpixel.png*
Disallow: /public/build/quill*
Disallow: /fetch/tag/*
Disallow: /comment-fetch/
Disallow: /comment-reply-fetch/
Disallow: /modules-fetch/
Disallow: /fetch/quick-rating-widgets/
Disallow: /tag/interaction-card/*
Disallow: /tag/search/db-home/
Disallow: /tag/search/listing-page/
Disallow: /mymodule/tag/
Disallow: /mymodule/vehicle-sub-model-year-tag/
Disallow: /mymodule/vehicle-sub-model-year-tag-trim/compare/
Disallow: /fetch/next/mural
Disallow: /fetch/next/mural/*
Disallow: /fetch/next/mural?*
Disallow: /author/*/page/

# Block AI content scrapers
User-agent: "008"
User-agent: Applebot
User-agent: Applebot-extended
User-agent: Bytespider
User-agent: CCBot
User-agent: Claude-Web
User-agent: ClaudeBot
User-agent: Diffbot
User-agent: FacebookBot
User-agent: GPTBot
User-agent: HTTrack
User-agent: Nutch
User-agent: Offline Explorer
User-agent: Scrapy
User-agent: YouBot
User-agent: anthropic-ai
User-agent: cohere-ai
User-agent: omgili
Disallow: /

User-agent: ChatGPT-User
Disallow: /
User-agent: AmazonAdBot
Allow: /
Sitemap: https://www.xda-developers.com/sitemap.xml

Sitemap: https://www.xda-developers.com/post_google_news.xml


sitemap.xml 200 OK
Type Sitemap Index URLs 198 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
xda-developers.com — via GoDaddy.com, LLC, 23 years, 8 months old, hosted on AWS
PASS
xda-developers.com — via GoDaddy.com, LLC, 23 years, 8 months old, hosted on AWS
Info::
Domain registered until Dec 12, 2030 (4 years, 8 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: GoDaddy.com, 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: AWS
Got: AS14618
Domain expiry

1641 days

December 12, 2030

SSL certificate

86 days

Issued by Let's Encrypt

Domain age

23 years, 8 months

Registered December 12, 2002

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS14618

52.5.96.96

Registrar

GoDaddy.com, LLC

Unlocked 3 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 GoDaddy.com, LLC
Created December 12, 2002 (23 years, 8 months ago)
Expires December 12, 2030 (4 years, 8 months)
Last Updated April 4, 2025
Name Servers ns20.digicertdns.com, ns21.digicertdns.com, ns23.digicertdns.net
DNSSEC Not enabled
Hosting
IP Address 52.5.96.96
ASN AS14618 (AMAZON-AES - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

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

Connection waterfall

DNS Lookup 33 ms TCP Connect 96 ms TLS Handshake 98 ms Server Processing 96 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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