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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
2
REVIEW
1
PASS
6
INFO
0
Probed from New York, United Stated
301 Moved Permanently
Checks
9
6 PASS 1 REVIEW 2 FIX
F
Redirect Chain
Action
4 redirect(s), 1172 ms total
FIX
4 redirect(s), 1172 ms total
Warning::
4 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1172 ms total
Got: 1172 ms
Info::
Cross-domain redirect detected

https://windows.com

624 ms · HTTP/1.1

301

https://windows.microsoft.com/

148 ms · HTTP/1.1

301

https://go.microsoft.com/fwlink/p/?linki...

14 ms · HTTP/1.1

301

https://www.microsoft.com/windows

117 ms · HTTP/1.1

301

https://www.microsoft.com/en-us/windows/

270 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://windows.com301624 msHTTP/1.1Kestrel
2https://windows.microsoft.com/301148 msHTTP/1.1AkamaiGHost
3https://go.microsoft.com/fwlink/p/?linki...30114 msHTTP/1.1Kestrel
4https://www.microsoft.com/windows301117 msHTTP/1.1
5https://www.microsoft.com/en-us/windows/200270 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

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.

B
TLS Certificate Expiry & Recommendations
143 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

143
days left
0d 30d 60d 90d+

Recommended actions

  • 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
5 A records, 120 ms lookup
PASS
5 A records, 120 ms lookup
Info::
Resolves to 5 IPv4 address(es)
Got: 20.70.246.20, 20.231.239.246, 20.76.201.171, 20.112.250.133, 20.236.44.162
Info::
Has 5 IPv6 (AAAA) record(s)
Got: 2603:1020:201:10::10f, 2603:1030:c02:8::14, 2603:1030:20e:3::23c, 2603:1010:3:3::5b, 2603:1030:b:3::152
Info::
4 nameserver(s) configured
Got: ns1-205.azure-dns.com, ns2-205.azure-dns.net, ns3-205.azure-dns.org, ns4-205.azure-dns.info
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::
SPF record present in TXT
Info::
DNS resolution time: 120 ms
Got: 120 ms
A20.70.246.20, 20.231.239.246, 20.76.201.171, 20.112.250.133, 20.236.44.162
AAAA2603:1020:201:10::10f, 2603:1030:c02:8::14, 2603:1030:20e:3::23c, 2603:1010:3:3::5b, 2603:1030:b:3::152
CNAME—
NSns1-205.azure-dns.com, ns2-205.azure-dns.net, ns3-205.azure-dns.org, ns4-205.azure-dns.info
MX
10 mail.windows.com
TXT
SPF v=spf1 mx -all
facebook-domain-verification=d65hkhpulntsek90x3rt1cqq4y06tk
D-TRUST=27XN9J9VBV6S24F
CAALookup not available with standard resolver
Resolved in 120 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+
IPv6 Readiness
IPv6 reachable (79 ms)
PASS
IPv6 reachable (79 ms)
Info::
IPv6 is configured and reachable at 2603:1020:201:10::10f, 2603:1030:c02:8::14, 2603:1030:20e:3::23c, 2603:1010:3:3::5b, 2603:1030:b:3::152
Got: 79 ms connect
IPv6 Ready
AAAA Records 2603:1020:201:10::10f, 2603:1030:c02:8::14, 2603:1030:20e:3::23c, 2603:1010:3:3::5b, 2603:1030:b:3::152 Connection Reachable (79 ms)
A+
Crawlability
robots.txt present, sitemap with 69 URLs
PASS
robots.txt present, sitemap with 69 URLs
Info::
robots.txt is present
Got: 10240 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 69 entries
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

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 lang="en-us" dir="ltr" >
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta http-equiv="content-language" content="en-us" />
        <meta name="ms.lang" content="en">
        <meta name="ms.loc" content="us">
            <title>Experience the Power of AI with Windows 11 OS, Computers, &amp; Apps | Microsoft Windows</title>
            <meta name="Title" content="Experience the Power of AI with Windows 11 OS, Computers, &amp; Apps | Microsoft Windows" />
            <meta name="Description" content="Experience the latest Microsoft Windows 11 features. Learn how our latest Windows OS gives you more ways to work, play, and create." />
            <meta name="keywords" content="AI, windows 11, windows 11 os" />
            <meta name="twitter:title" content="Experience the Power of AI with Windows 11 OS, Computers, &amp; Apps | Microsoft Windows" />
            <meta name="twitter:description" content="Experience the latest Microsoft Windows 11 features. Learn how our latest Windows OS gives you more ways to work, play, and create." />
            <meta property="og:title" content="Experience the Power of AI with Windows 11 OS, Computers, &amp; Apps | Microsoft Windows" />
            <meta property="og:description" content="Experience the latest Microsoft Windows 11 features. Learn how our latest Windows OS gives you more ways to work, play, and create." />
        <meta property="og:locale" content="en-us">
        <meta name="twitter:creator" content="@microsoft">
        <meta name="twitter:site" content="@windows" />
        <meta name="twitter:card" content="summary_large_image" />
        <meta name="twitter:url" content="https://www.microsoft.com/en-us/windows" />
            <meta name="twitter:image" content="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/MSFT-Windows-11-Search-bar?scl=1" />
            <meta property="og:image" content="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/MSFT-Windows-11-Search-bar?scl=1" />
        <meta property="og:type" content="website" />
        <meta property="og:url" content="https://www.microsoft.com/en-us/windows" />
        <meta property="og:site_name" content="Windows" />
            <link rel="canonical" href="https://www.microsoft.com/en-us/windows" />
        <meta name="format-detection" content="telephone=no" />
        <meta name="author" content="Microsoft" />
        <meta name="HandheldFriendly" content="True" />
        <meta name="MobileOptimized" content="320" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
        <meta http-equiv="cleartype" content="on">
        <meta name="country" content="US" />
    
    <script src="https://assets.adobedtm.com/5ef092d1efb5/e6b4ca74378c/launch-ENbb9d0de7cc374dc99259df2c4b823cef.min.js" async></script>
    <script type='text/javascript'>
        window.mldcc = "MSCC:"+"NR";
    </script>
    
    <script src="/en-us/windows/remote-resource-center/articles/scripts/Jquery.js?v=N2YlHnRI7it2_JoqUZTYWxPtx-s61zIGkk78Q0eabPM1"></script>


    <script rel="preload" async type="module" src="https://www.microsoft.com/videoplayer/ump.mjs"></script>
    <link href="/en-us/windows/remote-resource-center/articles/Content/Globalstyles.css?v=hELtwjx68INx5Vfw0meZsgVOmA3J_cMpjnts3J3rGy01" rel="stylesheet"/>

    <link rel="icon" href="https://www.microsoft.com/favicon.ico?v2" type="image/x-icon">


    <link rel="stylesheet" type="text/css" href="/en-us/windows/win-con-files/Content/westeuropeanmwfmainmin.css">

<link rel="stylesheet" href="https://www.microsoft.com/onerfstatics/marketingsites-neu-prod/west-european/shell/_scrf/css/themes=default.device=uplevel_web_pc/63-57d110/c9-be0100/a6-e969ef/43-9f2e7c/82-8b5456/a0-5d3913/4f-460e79/ae-f1ac0c?ver=2.0&amp;_cf=02242021_3231" type="text/css" media="all" />            <script type='text/javascript'>window.isUserSignedIn = 0;</script>
    
    
            <script rel="preload" src="/en-us/windows/win-con-files/scripts/ai.osplugin.3.min.js"></script>
    <script rel="preload" src="https://wcpstatic.microsoft.com/mscc/lib/v2/wcp-consent.js"></script>
    
</head>
<body>
    <div id="cookie-banner"></div>
    <div id="headerArea" class="uhf"  data-m='{"cN":"headerArea","cT":"Area_coreuiArea","id":"a1Body","sN":1,"aN":"Body"}'>
                <div id="headerRegion"      data-region-key="headerregion" data-m='{"cN":"headerRegion","cT":"Region_coreui-region","id":"r1a1","sN":1,"aN":"a1"}' >

    <div  id="headerUniversalHeader" data-m='{"cN":"headerUniversalHeader","cT":"Module_coreui-universalheader","id":"m1r1a1","sN":1,"aN":"r1a1"}'  data-module-id="Category|headerRegion|coreui-region|headerUniversalHeader|coreui-universalheader">
        






        <a id="uhfSkipToMain" class="m-skip-to-main" href="javascript:void(0)" data-href="#primaryArea" tabindex="0" data-m='{"cN":"Skip to content_nonnav","id":"nn1m1r1a1","sN":1,"aN":"m1r1a1"}'>Skip to main content</a>


<header class="c-uhfh context-uhf no-js c-sgl-stck c-category-header " itemscope="itemscope" data-header-footprint="/Windows/windows-header-holiday-RT, fromService: True"   data-magict="true"   itemtype="http://schema.org/Organization">
    <div class="theme-light js-global-head f-closed  global-head-cont" data-m='{"cN":"Universal Header_cont","cT":"Container","id":"c2m1r1a1","sN":2,"aN":"m1r1a1"}'>
        <div class="c-uhfh-gcontainer-st">
            <button type="button" class="c-action-trigger c-glyph glyph-global-nav-button" aria-label="All Microsoft expand to see list of Microsoft products and services" initialState-label="All Microsoft expand to see list of Microsoft products and services" toggleState-label="Close All Microsoft list" aria-expanded="false" data-m='{"cN":"Mobile menu button_nonnav","id":"nn1c2m1r1a1","sN":1,"aN":"c2m1r1a1"}'></button>
            <button type="button" class="c-action-trigger c-glyph glyph-arrow-htmllegacy c-close-search" aria-label="Close search" aria-expanded="false" data-m='{"cN":"Close Search_nonnav","id":"nn2c2m1r1a1","sN":2,"aN":"c2m1r1a1"}'></button>
                    <a id="uhfLogo" class="c-logo c-sgl-stk-uhfLogo" itemprop="url" href="https://www.microsoft.com" aria-label="Microsoft" data-m='{"cN":"GlobalNav_Logo_cont","cT":"Container","id":"c3c2m1r1a1","sN":3,"aN":"c2m1r1a1"}'>
                        <img alt="" itemprop="logo" class="c-image" src="https://uhf.microsoft.com/images/microsoft/RE1Mu3b.png" role="presentation" aria-hidden="true" />
                        <span itemprop="name" role="presentation" aria-hidden="true">Microsoft</span>
                    </a>
            <div class="f-mobile-title">
                <button type="button" class="c-action-trigger c-glyph glyph-chevron-left" aria-label="See more menu options" data-m='{"cN":"Mobile back button_nonnav","id":"nn4c2m1r1a1","sN":4,"aN":"c2m1r1a1"}'></button>
                <span data-global-title="Microsoft home" class="js-mobile-title">Windows</span>
                <button type="button" class="c-action-trigger c-glyph glyph-chevron-right" aria-label="See more menu options" data-m='{"cN":"Mobile forward button_nonnav","id":"nn5c2m1r1a1","sN":5,"aN":"c2m1r1a1"}'></button>
            </div>
                    <div class="c-show-pipe x-hidden-vp-mobile-st">
                        <a id="uhfCatLogo" class="c-logo c-cat-logo" href="https://www.microsoft.com/en-us/windows" aria-label="Windows" itemprop="url" data-m='{"cN":"CatNav_Windows_nav","id":"n6c2m1r1a1","sN":6,"aN":"c2m1r1a1"}'>
                                <span>Windows</span>
                        </a>
                    </div>
                <div class="cat-logo-button-cont x-hidden">
                        <button type="button" id="uhfCatLogoButton" class="c-cat-logo-button x-hidden" aria-expanded="false" aria-label="Windows" data-m='{"cN":"Windows_nonnav","id":"nn7c2m1r1a1","sN":7,"aN":"c2m1r1a1"}'>
                            Windows
                        </button>
                </div>



                    <nav id="uhf-g-nav" aria-label="Contextual menu" class="c-uhfh-gnav" data-m='{"cN":"Category nav_cont","cT":"Container","id":"c8c2m1r1a1","sN":8,"aN":"c2m1r1a1"}'>
            <ul class="js-paddle-items">
                    <li class="single-link js-nav-menu x-hidden-none-mobile-vp uhf-menu-item">
                        <a class="c-uhf-nav-link" href="https://www.microsoft.com/en-us/windows" data-m='{"cN":"CatNav_Home_nav","id":"n1c8c2m1r1a1","sN":1,"aN":"c8c2m1r1a1"}' > Home </a>
                    </li>
                                        <li class="nested-menu uhf-menu-item">
                            <div class="c-uhf-menu js-nav-menu">
                                <button type="button" id="c-shellmenu_55"  aria-expanded="false" data-m='{"cN":"CatNav_AboutWindows11_nonnav","id":"nn2c8c2m1r1a1","sN":2,"aN":"c8c2m1r1a1"}'>About Windows</button>

                                <ul class="" data-class-idn="" aria-hidden="true" data-m='{"cN":"AboutWindows11_cont","cT":"Container","id":"c3c8c2m1r1a1","sN":3,"aN":"c8c2m1r1a1"}'>
        <li class="js-nav-menu single-link" data-m='{"cN":"MeetWindows11_cont","cT":"Container","id":"c1c3c8c2m1r1a1","sN":1,"aN":"c3c8c2m1r1a1"}'>
            <a id="c-shellmenu_56" class="js-subm-uhf-nav-link" href="https://www.microsoft.com/en-us/windows/windows-11" data-m='{"cN":"CatNav_MeetWindows11_nav","id":"n1c1c3c8c2m1r1a1","sN":1,"aN":"c1c3c8c2m1r1a1"}'>Meet Windows 11</a>
            
        </li>
        <li class="js-nav-menu single-link" data-m='{"cN":"CompareWindows11_cont","cT":"Container","id":"c2c3c8c2m1r1a1","sN":2,"aN":"c3c8c2m1r1a1"}'>
            <a id="c-shellmenu_57" class="js-subm-uhf-nav-link" href="https://www.microsoft.com/en-us/windows/compare-windows-11-home-vs-pro-versions" data-m='{"cN":"CatNav_CompareWindows11_nav","id":"n1c2c3c8c2m1r1a1","sN":1,"aN":"c2c3c8c2m1r1a1"}'>Compare Windows 10 &amp; 11</a>
            
        </li>
        <li class="js-nav-menu single-link" data-m='{"cN":"Windows1
sitemap.xml 200 OK
Type URL Set URLs 69 entries Valid XML Yes
Sample URLs:
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.windows.com/
200https://windows.com/

Preferred variant: non-www

HTTP → HTTPS

301http://windows.com/ → https://windows.microsoft.com/

Consistent

A
Domain Intelligence
windows.com — via MarkMonitor Inc., 31 years old
PASS
windows.com — via MarkMonitor Inc., 31 years old
Warning::
Domain expires in 48 days
Consider enabling auto-renewal to prevent accidental expiration.
Got: Expires Jun 4, 2026
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: MarkMonitor 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.
Domain expiry

EXPIRED

June 4, 2026

SSL certificate

143 days

Issued by Microsoft Corporation

Domain age

31 years

Registered September 11, 1995

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2603:1010:3:3::5b

Registrar

MarkMonitor Inc.

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Domain has EXPIRED — renew immediately to avoid total site outage
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar MarkMonitor Inc.
Created September 11, 1995 (31 years ago)
Expires June 4, 2026 (1 months)
Last Updated May 3, 2025
Name Servers ns1-205.azure-dns.com, ns2-205.azure-dns.net, ns3-205.azure-dns.org, ns4-205.azure-dns.info
DNSSEC Not enabled
Hosting
IP Address 2603:1010:3:3::5b
Data source: rdap (0.1s)

Consider enabling auto-renewal to prevent accidental expiration.

Why this matters

Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.

Source: ICANN renewal policy

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

Connection waterfall

DNS Lookup 4 ms TCP Connect 35 ms TLS Handshake 154 ms Server Processing 35 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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