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https://buzzsumo.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
100
GRADE
A+
FIX
0
REVIEW
1
PASS
8
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
8 PASS 1 REVIEW
B
TLS Certificate Expiry & Recommendations
56 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

56
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
3 A records, 53 ms lookup
PASS
3 A records, 53 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 104.26.4.17, 172.67.73.94, 104.26.5.17
Info::
Has 3 IPv6 (AAAA) record(s)
Got: 2606:4700:20::ac43:495e, 2606:4700:20::681a:411, 2606:4700:20::681a:511
Info::
2 nameserver(s) configured
Got: max.ns.cloudflare.com, sima.ns.cloudflare.com
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: 53 ms
Got: 53 ms
A104.26.4.17, 172.67.73.94, 104.26.5.17
AAAA2606:4700:20::ac43:495e, 2606:4700:20::681a:411, 2606:4700:20::681a:511
CNAME—
NSmax.ns.cloudflare.com, sima.ns.cloudflare.com
MX
1 buzzsumo-com.mail.protection.outlook.com
TXT
SPF v=spf1 include:spf.mtasv.net include:spf.mailjet.com include:_spf.google.com inc...
google-site-verification=OgAJZUogUA-rjQNqE5m0uNd3tGE_6Rf0Cm0ylla4TE4
google-site-verification=F_0XAnBv9MR0nSaSZ3v2vctyyTmXGnF3GmzZetd8uAw
MS=ms38609505
box-domain-verification=d0369ff4a0618ff19f1d7f9c98c9bb65203e8a33febfc79cf2df6db7...
CAALookup not available with standard resolver
Resolved in 53 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://buzzsumo.com

https://buzzsumo.com

364 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://buzzsumo.com200364 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:20::ac43:495e, 2606:4700:20::681a:411, 2606:4700:20::681a:511
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:20::ac43:495e, 2606:4700:20::681a:411, 2606:4700:20::681a:511 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 18 URLs
PASS
robots.txt present, sitemap with 18 URLs
Info::
robots.txt is present
Got: 113 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 18 entries
Info::
Sitemap index with 18 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 113 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://buzzsumo.com/wp-sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 18 entries Valid XML Yes
Child Sitemaps:
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.buzzsumo.com/
200https://buzzsumo.com/

Preferred variant: non-www

HTTP → HTTPS

301http://buzzsumo.com/ → https://buzzsumo.com/

Consistent

A+
Domain Intelligence
buzzsumo.com — via NameCheap, Inc., 13 years, 9 months old
PASS
buzzsumo.com — via NameCheap, Inc., 13 years, 9 months old
Info::
Domain registered until Sep 17, 2027 (1 years, 5 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: NameCheap, 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

458 days

September 17, 2027

SSL certificate

56 days

Issued by Google Trust Services

Domain age

13 years, 9 months

Registered September 17, 2012

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:20::ac43:495e

Registrar

NameCheap, Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar NameCheap, Inc.
Created September 17, 2012 (13 years, 9 months ago)
Expires September 17, 2027 (1 years, 5 months)
Last Updated August 6, 2018
Name Servers max.ns.cloudflare.com, sima.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 2606:4700:20::ac43:495e
Data source: rdap (0.1s)

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

Connection waterfall

DNS Lookup 60 ms TCP Connect 17 ms TLS Handshake 24 ms Server Processing 321 ms Content Transfer 2 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9f0819958b93d081-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9f0819958b93d081-CDG
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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