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https://seriouseats.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2a06:98c1:58::1d8, 2606:4700:7::1d8
Info::
IPv6 connection error
Got: dial tcp6 [2a06:98c1:58::1d8]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2a06:98c1:58::1d8, 2606:4700:7::1d8 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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.seriouseats.com/
200https://seriouseats.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

B
TLS Certificate Expiry & Recommendations
81 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

81
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • 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
2 A records, 16 ms lookup
PASS
2 A records, 16 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.66.1.220, 162.159.141.224
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a06:98c1:58::1d8, 2606:4700:7::1d8
Info::
3 nameserver(s) configured
Got: blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org
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: 16 ms
Got: 16 ms
A172.66.1.220, 162.159.141.224
AAAA2a06:98c1:58::1d8, 2606:4700:7::1d8
CNAME—
NSblue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org
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
MS=ms11638476
ZOOM_verify_od1bx9rWRyONZrEbyv0P4Q
adobe-idp-site-verification=4d443bb146b2a60fc0c0216c899a6ef9baa971cc3c36ac4b3020...
atlassian-domain-verification=uUTQHYge655RxaiCqp-IAyc/Q7GgtoJziDouyp0rB7n8OUdp4q...
cursor-domain-verification-7hbr5z=RSrHsnGEmBu6asStY02YtbFpG
docusign=d93b4318-1f4f-41da-b870-bdcd78c25e64
facebook-domain-verification=6z0y6uuhvh1uttqpr1r5xafmi95xe8
google-site-verification=8U7EQt5vjysnYK95n7JD8hHDaE7qtJgLbhoi_M5xIWw
google-site-verification=8mIyQXp8D5O1sEUvWbPqBg9oB495DclpJBmDZWl-0is
google-site-verification=b4AngDLH97k98MIXIFBsY1QwrRCnr16jB9bVtCnSpvo
google-site-verification=eACr4LVWGfHC7y1ipVCq23EIOXVcSN2pP2ATg6xL9ps
knowbe4-site-verification=fa92b9e4fa2fbe928824de444cebea5e
openai-domain-verification=dv-avgJmtXY4qdIWzX5tkiKQnkI
shopify-verification-code=jHrlSZnXOLH4fjtv3Pd55lawJWmh5H
slack-domain-verification=MmS8dxt4px7zNS8yQvItWQHWf4Q67CeWQ7GszYle
SPF v=spf1 include:spf.clearslide.com include:_spf.google.com include:_spf.createsen...
windsurf-verification=6jEz7Ub5NbN5RxNQLxji5kwRKjtIrmxj7LRRcanJTlw=
CAALookup not available with standard resolver
Resolved in 16 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), 236 ms total
PASS
1 redirect(s), 236 ms total
Info::
Single redirect
Got: https://seriouseats.com → https://www.seriouseats.com/ (301)
Info::
WWW normalization redirect

https://seriouseats.com

92 ms · HTTP/1.1

301

https://www.seriouseats.com/

144 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://seriouseats.com30192 msHTTP/1.1cloudflare
2https://www.seriouseats.com/200144 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 869 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
Sitemap index with 1 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 869 B Sitemaps referenced 2 User-agents Perplexity-User, *, ChatGPT-User, news-please, Claude-Web, cohere-ai, FriendlyCrawler, ClaudeBot, Quora-Bot, PerplexityBot, Pinterest, OAI-SearchBot, anthropic-ai, omgilibot, omgili, Google-Extended, Pinterestbot, CCBot, GPTBot, ImagesiftBot Blocking No — crawling allowed
User-agent: *

Disallow: *.pdf
Disallow: /embed?

User-agent: Pinterest
Disallow:

User-agent: Pinterestbot
Disallow:

User-agent: CCBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /thmb/

User-agent: OAI-SearchBot
Disallow: /thmb/

User-agent: GPTBot
Disallow: /thmb/

User-agent: news-please
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Claude-Web
Disallow: /

User-agent: cohere-ai
Disallow: /

User-agent: ImagesiftBot
Disallow: /

User-agent: FriendlyCrawler
Disallow: /

User-agent: Quora-Bot
Disallow: /

User-agent: omgilibot
Disallow: /

User-agent: omgili
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: Perplexity-User
Disallow: /

User-agent: Google-Extended
Disallow: /


Sitemap: https://www.seriouseats.com/sitemap.xml

Sitemap: https://www.seriouseats.com/google-news-sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 1 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
seriouseats.com — via MarkMonitor Inc., 20 years, 3 months old, hosted on Cloudflare
PASS
seriouseats.com — via MarkMonitor Inc., 20 years, 3 months old, hosted on Cloudflare
Info::
Domain registered until Apr 7, 2027 (11 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.
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: Cloudflare
Got: AS13335
Domain expiry

262 days

April 7, 2027

SSL certificate

81 days

Issued by Let's Encrypt

Domain age

20 years, 3 months

Registered April 7, 2006

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS13335

172.66.1.220

Registrar

MarkMonitor Inc.

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 MarkMonitor Inc.
Created April 7, 2006 (20 years, 3 months ago)
Expires April 7, 2027 (11 months)
Last Updated March 6, 2026
Name Servers blue.foundationdns.com, blue.foundationdns.net, blue.foundationdns.org
DNSSEC Not enabled
Hosting
IP Address 172.66.1.220
ASN AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
Provider Cloudflare
Data source: rdap (0.1s)

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

Connection waterfall

DNS Lookup 5 ms TCP Connect 3 ms TLS Handshake 8 ms Server Processing 74 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: SJC)
Got: cf-ray: 9f001c472d3e4b39-SJC
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9f001c472d3e4b39-SJC
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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