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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Santa Clara, United States
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

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 10240 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

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 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<!DOCTYPE html>
<html id="XF" lang="en-US" dir="LTR"
	data-xf="2.3"
	data-app="public"
	
	
	data-template="forum_list"
	data-container-key=""
	data-content-key=""
	data-logged-in="false"
	data-cookie-prefix="xf_"
	data-csrf="1776295384,e3c621f81f9f743e1b6406cc191f639e"
	class="has-no-js template-forum_list"
	>
<head>

	
	
	
	


	<meta charset="utf-8" />
	<title>AnandTech Forums: Technology, Hardware, Software, and Deals</title>
	<link rel="manifest" href="/webmanifest.php">

	<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
	<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">

	
		
			
				<meta name="theme-color" media="(prefers-color-scheme: light)" content="#0f578a" />
				<meta name="theme-color" media="(prefers-color-scheme: dark)" content="#0a1c29" />
			
		
	

	<meta name="apple-mobile-web-app-title" content="AnandTech Forums: Technology, Hardware, Software, and Deals">
	

	
		
		<meta name="description" content="Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech." />
		<meta property="og:description" content="Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech." />
		<meta property="twitter:description" content="Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech." />
	
	
		<link rel="canonical" href="https://forums.anandtech.com/" />
	
		<link rel="alternate" type="application/rss+xml" title="RSS feed for AnandTech Forums: Technology, Hardware, Software, and Deals" href="/forums/-/index.rss" />
	
		
	

	
		
	
	
	<meta property="og:site_name" content="AnandTech Forums: Technology, Hardware, Software, and Deals" />


	
	
		
	
	
	<meta property="og:type" content="website" />


	
	
		
	
	
	
		<meta property="og:title" content="AnandTech Forums: Technology, Hardware, Software, and Deals" />
		<meta property="twitter:title" content="AnandTech Forums: Technology, Hardware, Software, and Deals" />
	


	
	
	
		
	
	
	<meta property="og:url" content="https://forums.anandtech.com/" />


	
	

	
	
	
		
	
	

	<link rel="stylesheet" href="/css.php?css=public%3Anormalize.css%2Cpublic%3Afa.css%2Cpublic%3Avariations.less%2Cpublic%3Acore.less%2Cpublic%3Aapp.less&amp;s=1&amp;l=1&amp;d=1775944137&amp;k=af958c765bd98cacf1190720e33ad54d4366ea5e" />

	<link rel="stylesheet" href="/css.php?css=public%3Anode_list.less%2Cpublic%3Anotices.less%2Cpublic%3Ashare_controls.less%2Cpublic%3Aextra.less&amp;s=1&amp;l=1&amp;d=1775944137&amp;k=f01673533f7c22812e29be29ad29ce51e7367472" />


	
		<script src="/js/xf/preamble.min.js?_v=fddf0136"></script>
	

	
	
	<script src="/js/vendor/vendor-compiled.js?_v=fddf0136" defer></script>
	<script src="/js/xf/core-compiled.js?_v=fddf0136" defer></script>

	<script>
		XF.ready(() =>
		{
			XF.extendObject(true, XF.config, {
				// 
				userId: 0,
				enablePush: true,
				pushAppServerKey: 'BCBZ61GTgrlKRHoxzjz9SBNTH0IIIIbL7i84xm4vHbNPW4RvXB9n_g4s2sJ07g2glHuPVs7sMb1N4qsOzzTty_4',
				url: {
					fullBase: 'https://forums.anandtech.com/',
					basePath: '/',
					css: '/css.php?css=__SENTINEL__&s=1&l=1&d=1775944137',
					js: '/js/__SENTINEL__?_v=fddf0136',
					icon: '/data/local/icons/__VARIANT__.svg?v=1775355241#__NAME__',
					iconInline: '/styles/fa/__VARIANT__/__NAME__.svg?v=5.15.3',
					keepAlive: '/login/keep-alive'
				},
				cookie: {
					path: '/',
					domain: '',
					prefix: 'xf_',
					secure: true,
					consentMode: 'simple',
					consented: ["optional","_third_party"]
				},
				cacheKey: 'f3ed7234243583f554e27d349fe769c5',
				csrf: '1776295384,e3c621f81f9f743e1b6406cc191f639e',
				js: {"\/js\/themehouse\/watch\/action.min.js?_v=fddf0136":true},
				fullJs: false,
				css: {"public:node_list.less":true,"public:notices.less":true,"public:share_controls.less":true,"public:extra.less":true},
				time: {
					now: 1776295384,
					today: 1776225600,
					todayDow: 3,
					tomorrow: 1776312000,
					yesterday: 1776139200,
					week: 1775707200,
					month: 1775016000,
					year: 1767243600
				},
				style: {
					light: 'default',
					dark: 'alternate',
					defaultColorScheme: 'light'
				},
				borderSizeFeature: '3px',
				fontAwesomeWeight: 'r',
				enableRtnProtect: true,
				
				enableFormSubmitSticky: true,
				imageOptimization: '0',
				imageOptimizationQuality: 0.85,
				uploadMaxFilesize: 268435456,
				uploadMaxWidth: 3840,
				uploadMaxHeight: 2160,
				allowedVideoExtensions: ["m4v","mov","mp4","mp4v","mpeg","mpg","ogv","webm"],
				allowedAudioExtensions: ["mp3","opus","ogg","wav"],
				shortcodeToEmoji: false,
				visitorCounts: {
					conversations_unread: '0',
					alerts_unviewed: '0',
					total_unread: '0',
					title_count: true,
					icon_indicator: true
				},
				jsMt: {"xf\/action.js":"33380797","xf\/embed.js":"33380797","xf\/form.js":"33380797","xf\/structure.js":"33380797","xf\/tooltip.js":"33380797"},
				jsState: {},
				publicMetadataLogoUrl: '',
				publicPushBadgeUrl: 'https://forums.anandtech.com/styles/default/xenforo/bell.png'
			})

			XF.extendObject(XF.phrases, {
				// 
				date_x_at_time_y:     "{date} at {time}",
				day_x_at_time_y:      "{day} at {time}",
				yesterday_at_x:       "Yesterday at {time}",
				x_minutes_ago:        "{minutes} minutes ago",
				one_minute_ago:       "1 minute ago",
				a_moment_ago:         "A moment ago",
				today_at_x:           "Today at {time}",
				in_a_moment:          "In a moment",
				in_a_minute:          "In a minute",
				in_x_minutes:         "In {minutes} minutes",
				later_today_at_x:     "Later today at {time}",
				tomorrow_at_x:        "Tomorrow at {time}",
				short_date_x_minutes: "{minutes}m",
				short_date_x_hours:   "{hours}h",
				short_date_x_days:    "{days}d",

				day0: "Sunday",
				day1: "Monday",
				day2: "Tuesday",
				day3: "Wednesday",
				day4: "Thursday",
				day5: "Friday",
				day6: "Saturday",

				dayShort0: "Sun",
				dayShort1: "Mon",
				dayShort2: "Tue",
				dayShort3: "Wed",
				dayShort4: "Thu",
				dayShort5: "Fri",
				dayShort6: "Sat",

				month0: "January",
				month1: "February",
				month2: "March",
				month3: "April",
				month4: "May",
				month5: "June",
				month6: "July",
				month7: "August",
				month8: "September",
				month9: "October",
				month10: "November",
				month11: "December",

				active_user_changed_reload_page: "The active user has changed. Reload the page for the latest version.",
				server_did_not_respond_in_time_try_again: "The server did not respond in time. Please try again.",
				oops_we_ran_into_some_problems: "Oops! We ran into some problems.",
				oops_we_ran_into_some_problems_more_details_console: "Oops! We ran into some problems. Please try again later. More error details may be in the browser console.",
				file_too_large_to_upload: "The file is too large to be uploaded.",
				uploaded_file_is_too_large_for_server_to_process: "The uploaded file is too large for the server to process.",
				files_being_uploaded_are_you_sure: "Files are still being uploaded. Are you sure you want to submit this form?",
				attach: "Attach files",
				rich_text_box: "Rich text box",
				close: "Close",
				link_copied_to_clipboard: "Link copied to clipboard.",
				text_copied_to_clipboard: "Text copied to clipboard.",
				loading: "Loading…",
				you_have_exceeded_maximum_number_of_selectable_items: "You have exceeded the maximum number of selectable items.",

				processing: "Processing",
				'processing...': "Processing…",

				showing_x_of_y_items: "Showing {count} of {total} items",
				showing_all_items: "Showing all items",
				no_items_to_display: "No items to display",

				number_button_up: "Increase",
				number_button_down: "Decrease",

				push_enable_notification_title: "Push notifications enabled successfully at AnandTech Forums: Technology, Hardware, Software, and Deals",
				push_enable_notification_body: "Thank you for enabling push notifications!",

				pull_down_to_refresh: "Pull down to refresh",
				release_to_refresh: "Release to refresh",
				refreshing: "Refreshing…"
			})
		})
	</script>

	<script src="/js/themehouse/watch/action.min.js?_v=fddf0136" defer></script>



	

	
	<script async src="https://www.googletagmanager.com/gtag/js?id=UA-1721979-3"></script>
	<script>
		window.dataLayer = window.dataLayer || [];
		function gtag(){dataLayer.push(arguments);}
		gtag('js', new Date());
		gtag('config', 'UA-1721979-3', {
			// 
			
			
		});
	</script>

<script defer src="https://cloudmetrics.xenforo.com/js/essential.js" data-website-id="2020807722330481"></script>



    
      <script type="text/javascript" async=true>
(function() {
  var host = window.location.hostname;
  var element = document.createElement('script');
  var firstScript = document.getElementsByTagName('script')[0];
  var url = 'https://quantcast.mgr.consensu.org'
    .concat('/choice/', 'uer8ZPXHG8WDU', '/', host, '/choice.js')
  var uspTries = 0;
  var uspTriesLimit = 3;
  element.async = true;
  element.type = 'text/javascript';
  element.src = url;

  firstScript.parentNode.insertBefore(element, firstScript);

  function makeStub() {
    var TCF_LOCATOR_NAME = '__tcfapiLocator';
    var queue = [];
    var win = window;
    var cmpFrame;

    function addFrame() {
      var doc = win.document;
      var otherCMP = !!(win.frames[TCF_LOCATOR_NAME]);

      if (!otherCMP) {
        if (doc.body) {
          var iframe = doc.createElement('iframe');

          iframe.style.cssText = 'display:none';
          iframe.name = TCF_LOCATOR_NAME;
          doc.body.appendChild(iframe);
        } else {
          setTimeout(addFrame, 5);
        }
      }
      return !otherCMP;
    }

    function tcfAPIHandler() {
      var gdprApplies;
      var args = arguments;

      if (!args.length) {
        return queue;
      } else if (args[0] === 'setGdprApplies') {
        if (
          args.length > 3 &&
          args[2] === 2 &&
          typeof args[3] === 'boolean'
        ) {
          gdprApplies = args[3];
          if (typeof args[2] === 'function') {
            args[2]('set', true);
          }
        }
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
TLS Certificate Expiry & Recommendations
36 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

36
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, 35 ms lookup
PASS
2 A records, 35 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 185.113.25.58, 185.113.25.57
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1496.awsdns-59.org, ns-1685.awsdns-18.co.uk, ns-334.awsdns-41.com, ns-534.awsdns-02.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: 35 ms
Got: 35 ms
A185.113.25.58, 185.113.25.57
AAAA—
CNAME—
NSns-1496.awsdns-59.org, ns-1685.awsdns-18.co.uk, ns-334.awsdns-41.com, ns-534.awsdns-02.net
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
_globalsign-domain-verification=SQONiBgTxRVzPPtIHjei_IUGCiAa0KxoVWFw1QfVes
google-site-verification=A1SHXa9b1SFhG5x2yjimSXy7QcrJu5-rEpkZImO4hBc
google-site-verification=QLPpwNQQZqkguuxSXNbMi3BlZ-VG9aloW9U0UnWFhlE
google-site-verification=WQQg1UhYrJBag-pxdyL9jvrBCsr3rX6rx_ddyWv6iEg
google-site-verification=qvIDfFPLME5apEnuJl826LTD3PseaM7FbW6Ofkf3Jg0
google-site-verification=t3oTeswyvRHP9q_I4ZSIBHTe07ZzvTTSUIufqpIBfgA
SPF v=spf1 include:_spf.google.com -all
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.

A
Redirect Chain
1 redirect(s), 499 ms total
PASS
1 redirect(s), 499 ms total
Info::
Single redirect
Got: https://anandtech.com → https://forums.anandtech.com/ (301)
Info::
Cross-domain redirect detected

https://anandtech.com

452 ms · HTTP/1.1

301

https://forums.anandtech.com/

47 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://anandtech.com301452 msHTTP/1.1gunicorn
2https://forums.anandtech.com/20047 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

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)
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

301https://www.anandtech.com/
200https://anandtech.com/

Preferred variant: non-www

HTTP → HTTPS

308http://anandtech.com/ → https://anandtech.com/

Use 301 (permanent) instead of 302 (temporary)

A+
Domain Intelligence
anandtech.com — via Lexsynergy Limited, 29 years old, hosted on FUTURE, GB
PASS
anandtech.com — via Lexsynergy Limited, 29 years old, hosted on FUTURE, GB
Info::
Domain registered until Aug 23, 2026 (4 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: Lexsynergy Limited
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: FUTURE, GB
Got: AS20596
Domain expiry

68 days

August 23, 2026

SSL certificate

36 days

Issued by Let's Encrypt

Domain age

29 years

Registered August 24, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

FUTURE, GB

ASN AS20596

185.113.25.57

Registrar

Lexsynergy Limited

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Lexsynergy Limited
Created August 24, 1997 (29 years ago)
Expires August 23, 2026 (4 months)
Last Updated July 24, 2025
Name Servers ns-1496.awsdns-59.org, ns-1685.awsdns-18.co.uk, ns-334.awsdns-41.com, ns-534.awsdns-02.net
DNSSEC Not enabled
Hosting
IP Address 185.113.25.57
ASN AS20596 (FUTURE, GB)
Provider FUTURE, GB
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 455 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
36 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
137 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
142 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
455 ms
Total Time Total request time from DNS lookup through full response.
455 ms

Connection waterfall

DNS Lookup 36 ms TCP Connect 137 ms TLS Handshake 142 ms Server Processing 140 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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