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https://www.bing.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
200 OK
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.

B
DNS Records
2 A records, 34 ms lookup
REVIEW
2 A records, 34 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 95.100.86.220, 95.100.86.226
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a02:26f0:2380:19::17d3:f48, 2a02:26f0:2380:19::17d3:f56
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: www-www.bing.com.trafficmanager.net
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 34 ms
Got: 34 ms
A95.100.86.220, 95.100.86.226
AAAA2a02:26f0:2380:19::17d3:f48, 2a02:26f0:2380:19::17d3:f56
CNAMEwww-www.bing.com.trafficmanager.net
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 34 ms

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more ▾

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

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

Preferred variant: www

HTTP → HTTPS

200http://www.bing.com/

HTTP version does not redirect to HTTPS

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

Certificate validity

111
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+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://www.bing.com

https://www.bing.com

81 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.bing.com20081 msHTTP/1.1
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a02:26f0:2380:19::17d3:f48, 2a02:26f0:2380:19::17d3:f56
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a02:26f0:2380:19::17d3:f48, 2a02:26f0:2380:19::17d3:f56 Connection Reachable (1 ms)
A+
Crawlability
robots.txt present, sitemap with 11 URLs
PASS
robots.txt present, sitemap with 11 URLs
Info::
robots.txt is present
Got: 2676 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 11 entries
Info::
Sitemap index with 11 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2676 B Sitemaps referenced 1 User-agents msnbot-media, Twitterbot, * Blocking No — crawling allowed
User-agent: msnbot-media

Disallow: /

Allow: /th?


User-agent: Twitterbot

Disallow:


User-agent: *

Disallow: /academic/profile

Disallow: /academic/search

Disallow: /account/

Disallow: /aclick

Disallow: /alink

Disallow: /amp/

Allow: /api/maps/

Disallow: /api/

Disallow: /bfp/search

Disallow: /bing-site-safety

Disallow: /blogs/search/

Disallow: /ck/

Disallow: /copilotsearch?q=

Disallow: /cr$

Disallow: /cr?

Disallow: /entities/search

Disallow: /entityexplore$

Disallow: /entityexplore?

Disallow: /fd/

Disallow: /fun/api/

Disallow: /fun/g/

Disallow: /history

Disallow: /hotel/reviews?

Disallow: /hotels/search

Disallow: /HpImageArchive.aspx

Disallow: /hpm

Disallow: /hpmob

Disallow: /images/async/?

Disallow: /images/async?

Disallow: /images/hosted/?

Disallow: /images/hosted/search?

Disallow: /images/hosted?

Disallow: /images/search%3F

Disallow: /images/search%5C

Disallow: /images/search/?

Disallow: /images/search?

Disallow: /images/searchbyimage

Disallow: /images?

Disallow: /inboxcommerce

Disallow: /local

Disallow: /maps/adsendpoint

Disallow: /merchant/reviews?

Disallow: /notifications/

Disallow: /offers/proxy/dealsserver/api/log

Disallow: /offers/proxy/dealsserver/buy

Disallow: /ping

Disallow: /product/reviews?

Disallow: /profile/history?

Disallow: /proFile/history?

Disallow: /Proxy.ashx

Disallow: /results

Disallow: /rewardsapp/

Disallow: /search

Disallow: /Search

Disallow: /settings

Disallow: /shenghuo

Allow: /shop$

Allow: /shop/

Disallow: /shop/collections

Disallow: /shop/productpage

Disallow: /shop/topics

Disallow: /shop?*

Disallow: /social/search?

Disallow: /spbasic

Disallow: /spresults

Disallow: /static/

Disallow: /th$

Disallow: /th?

Disallow: /translator/?ref=

Disallow: /travel/api

Disallow: /travel/css

Disallow: /travel/flight/flightSearch

Disallow: /travel/flight/flightSearchAction

Disallow: /travel/flight/search/?

Disallow: /travel/flight/search?

Disallow: /travel/flights

Disallow: /travel/flight-search

Disallow: /travel/hotel/hotelMiniSearchRequest

Disallow: /travel/hotel/hotelSearch

Disallow: /travel/hotels/checkout

Disallow: /travel/hotels/detail

Disallow: /travel/hotels/search/?

Disallow: /travel/hotels/search?

Disallow: /travel/hotel-search

Disallow: /travel/scripts

Disallow: /travel/secure

Disallow: /url

Disallow: /videos/browsing

Disallow: /videos/explore

Disallow: /videos/favorites

Disallow: /videos/feed

Disallow: /videos/music

Disallow: /videos/trending

Disallow: /widget/cr

Disallow: /widget/entity/search/?

Disallow: /widget/render

Disallow: /widget/snapshot

Disallow: /work


Sitemap: https://www.bing.com/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 11 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
bing.com — via MarkMonitor Inc., 30 years, 7 months old
PASS
bing.com — via MarkMonitor Inc., 30 years, 7 months old
Info::
Domain registered until Jan 30, 2027 (9 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: MarkMonitor Inc.
Domain expiry

202 days

January 30, 2027

SSL certificate

111 days

Issued by Microsoft Corporation

Domain age

30 years, 7 months

Registered January 29, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2620:1ec:33:1::10

Registrar

MarkMonitor Inc.

Lock status unknown 8 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
Registrar MarkMonitor Inc.
Created January 29, 1996 (30 years, 7 months ago)
Expires January 30, 2027 (9 months)
Last Updated December 29, 2025
Name Servers dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns1-204.azure-dns.com, ns2-204.azure-dns.net, ns3-204.azure-dns.org, ns4-204.azure-dns.info
DNSSEC Not enabled
Hosting
IP Address 2620:1ec:33:1::10
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

A+
HTTP Probe Timing
Total 132 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
43 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
5 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
109 ms
Total Time Total request time from DNS lookup through full response.
133 ms

Connection waterfall

DNS Lookup 43 ms TCP Connect 1 ms TLS Handshake 5 ms Server Processing 60 ms Content Transfer 24 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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