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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
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

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.livescience.com/
200https://livescience.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://livescience.com/ → https://www.livescience.com/

Consistent

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

Certificate validity

85
days left
0d 30d 60d 90d+

Recommended actions

  • 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
4 A records, 38 ms lookup
PASS
4 A records, 38 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.194.114, 151.101.66.114, 151.101.2.114, 151.101.130.114
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1524.awsdns-62.org, ns-816.awsdns-38.net, ns-91.awsdns-11.com, ns-1768.awsdns-29.co.uk
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: 38 ms
Got: 38 ms
A151.101.194.114, 151.101.66.114, 151.101.2.114, 151.101.130.114
AAAA—
CNAME—
NSns-1524.awsdns-62.org, ns-816.awsdns-38.net, ns-91.awsdns-11.com, ns-1768.awsdns-29.co.uk
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
+GTGVMrHp0rvW2q0l3oHszfVzfjIxkE6goLfPCimYvc/KFJijrv2QeehCF1lSXE45Z8oHGNGTV8Lt2RV...
google-site-verification=bBWc5E4SVxmPs08cqtt_LR0zbPn6co3kaI9JwkW0S-A
_globalsign-domain-verification=SQONiBgTxRVzPPtIHjei_IUGCiAa0KxoVWFw1QfVes
MS=ms60632271
google-site-verification=Atqc9dP0n6k-l_-G2qLXJywPb_IyZrSK02WIJzRvNQ0
include:mx.google.com
botify-site-verification=Bvex9ErUud910tVAIquqUVU7RH2if7uS
SPF v=spf1 include:_spf.google.com -all
google-site-verification=cT0VCuWQCTCmUeE43of8bJhsqQBzcEpdq18TOMdUguk
CAALookup not available with standard resolver
Resolved in 38 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), 90 ms total
PASS
1 redirect(s), 90 ms total
Info::
Single redirect
Got: https://livescience.com → https://www.livescience.com/ (301)
Info::
WWW normalization redirect

https://livescience.com

6 ms · HTTP/1.1

301

https://www.livescience.com/

84 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://livescience.com3016 msHTTP/1.1Varnish
2https://www.livescience.com/20084 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 266 URLs
PASS
robots.txt present, sitemap with 266 URLs
Info::
robots.txt is present
Got: 1249 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 266 entries
Info::
Sitemap index with 266 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1249 B Sitemaps referenced 2 User-agents kangaroo, youbot, omgili, diffbot, img2dataset, amazonbot, amazon-qbusiness, meta-externalagent, meta-webindexer, *, AmazonAdBot, mistralai, cohere, ai2bot, bytespider Blocking No — crawling allowed
##################################################
# Vanilla-wide rules                             #
##################################################
User-agent: *

# Common path patterns (* prefix to handle localisation)
Disallow: */deals/compare
Disallow: */html/
Disallow: */p/*/embed/captioned
Disallow: */outlink*

# Common query string patterns
Disallow: *searchTerm=*
Disallow: *sortBy=*
Disallow: *productBrand=*
Disallow: *%7B*%7D*
Disallow: *seenMatchId=*

# Infinite scroll paths
Disallow: /infinite-scroll-article/*
Disallow: /infinite-scroll-review/*
Disallow: /infinite-scroll-recipe/*

# Amazon AdBot
User-agent: AmazonAdBot
Disallow:

# AI crawlers
User-agent: bytespider
User-agent: mistralai
User-agent: cohere
User-agent: ai2bot
User-agent: youbot
User-agent: omgili
User-agent: diffbot
User-agent: kangaroo
User-agent: img2dataset
User-agent: amazonbot
User-agent: amazon-qbusiness
User-Agent: meta-externalagent
User-Agent: meta-webindexer
Disallow: /



##################################################
# Sitemaps                                       #
##################################################
User-agent: *
Sitemap: https://www.livescience.com/sitemap.xml
Sitemap: https://www.livescience.com/sitemap-news.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 266 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
livescience.com — via Lexsynergy Limited, 25 years, 4 months old, hosted on Fastly
PASS
livescience.com — via Lexsynergy Limited, 25 years, 4 months old, hosted on Fastly
Info::
Domain registered until Apr 4, 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: 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: Fastly
Got: AS54113
Domain expiry

263 days

April 4, 2027

SSL certificate

85 days

Issued by Let's Encrypt

Domain age

25 years, 4 months

Registered April 4, 2001

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.2.114

Registrar

Lexsynergy Limited

Unlocked 4 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 Lexsynergy Limited
Created April 4, 2001 (25 years, 4 months ago)
Expires April 4, 2027 (11 months)
Last Updated March 5, 2026
Name Servers ns-1524.awsdns-62.org, ns-1768.awsdns-29.co.uk, ns-816.awsdns-38.net, ns-91.awsdns-11.com
DNSSEC Not enabled
Hosting
IP Address 151.101.2.114
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (0.3s)

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

Connection waterfall

DNS Lookup 37 ms TCP Connect 0 ms TLS Handshake 3 ms Server Processing 1 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT-SYNTH)
PASS
Fastly (HIT-SYNTH)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-toj-leto2350035-TOJ
Info::
CDN cache status: HIT-SYNTH
CDN Detected: Fastly
Provider Fastly Cache Status HIT-SYNTH Evidence x-served-by: cache-toj-leto2350035-TOJ
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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