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https://ebsco.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Amsterdam, Netherlands
301 Moved Permanently
Checks
9
5 PASS 4 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.ebsco.com/
200https://ebsco.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

B
TLS Certificate Expiry & Recommendations
127 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

127
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
B
CDN & Delivery
AWS CloudFront (FunctionGeneratedResponse from cloudfront)
REVIEW
AWS CloudFront (FunctionGeneratedResponse from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: AMS1-P1)
Got: x-amz-cf-id: _p6axa8-XuG7PCbpBMB_e-1O6lzKdXy9gisiTSj0grJfiWZqM8CGkw==
Info::
CDN cache status: FunctionGeneratedResponse from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status FunctionGeneratedResponse from cloudfront Evidence x-amz-cf-id: _p6axa8-XuG7PCbpBMB_e-1O6lzKdXy9gisiTSj0grJfiWZqM8CGkw==
A+
DNS Records
4 A records, 12 ms lookup
PASS
4 A records, 12 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 18.65.39.25, 18.65.39.49, 18.65.39.103, 18.65.39.119
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-240.awsdns-30.com, ns-703.awsdns-23.net, ns-1037.awsdns-01.org, ns-1935.awsdns-49.co.uk
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: 12 ms
Got: 12 ms
A18.65.39.25, 18.65.39.49, 18.65.39.103, 18.65.39.119
AAAA—
CNAME—
NSns-240.awsdns-30.com, ns-703.awsdns-23.net, ns-1037.awsdns-01.org, ns-1935.awsdns-49.co.uk
MX
10 ebsco-com.mail.protection.outlook.com
TXT
openai-domain-verification=dv-a7Pk8yutMrn345jq2PpZKlV2
fastly-domain-delegation-NS79isbub79NISUKLllsi-20240213
miro-verification=833efccbc7e6f3d7bc033d9571579fb209886c65
onetrust-domain-verification=4ee3c0d902f84f86bf46bdb348385e38
anthropic-domain-verification-40f9wa=X3qGAY0PPbntCubXhR5DA0G5Z
atlassian-domain-verification=9BkuByGvuss3dk/gW3Hy+ETISKifpOu3+Ecje5zZ71hKF124Dh...
SPF v=spf1 include:spf.protection.outlook.com include:_spfa.ebsco.com include:amazon...
CAALookup not available with standard resolver
Resolved in 12 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), 62 ms total
PASS
1 redirect(s), 62 ms total
Info::
Single redirect
Got: https://ebsco.com → https://www.ebsco.com/ (301)
Info::
WWW normalization redirect

https://ebsco.com

24 ms · HTTP/1.1

301

https://www.ebsco.com/

37 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ebsco.com30124 msHTTP/1.1Atlas
2https://www.ebsco.com/20037 msHTTP/1.1Atlas

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 2 URLs
PASS
robots.txt present, sitemap with 2 URLs
Info::
robots.txt is present
Got: 801 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 2 entries
Info::
Sitemap index with 2 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 801 B Sitemaps referenced 1 User-agents Bingbot, ia_archiver, AhrefsBot, MJ12bot, DotBot, *, Googlebot Blocking No — crawling allowed
User-Agent: *
Allow: /
Allow: /research-starters/
Allow: /who-we-are/
Allow: /terms/
Allow: /images/
Allow: /pdfs/
Disallow: /(authenticated)/
Disallow: /knowledge/article/
Disallow: /api/
Disallow: /api/debug-auth/
Disallow: /api/debug-headers/
Disallow: /(demo)/
Disallow: /_next/
Disallow: /static/
Disallow: /*.json$
Disallow: /*.xml$

User-Agent: Googlebot
Allow: /
Disallow: /(authenticated)/
Disallow: /api/
Disallow: /(demo)/

User-Agent: Bingbot
Allow: /
Disallow: /(authenticated)/
Disallow: /api/
Disallow: /(demo)/

User-Agent: ia_archiver
Allow: /research-starters/
Allow: /who-we-are/
Disallow: /(authenticated)/

User-Agent: AhrefsBot
Disallow: /

User-Agent: MJ12bot
Disallow: /

User-Agent: DotBot
Disallow: /

Sitemap: https://a101334.sitemaphosting3.com/3981381/sitemap_3981381.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 2 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
ebsco.com — via GoDaddy.com, LLC, 35 years, 11 months old, hosted on AWS
PASS
ebsco.com — via GoDaddy.com, LLC, 35 years, 11 months old, hosted on AWS
Info::
Domain registered until Nov 6, 2027 (1 years, 6 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: GoDaddy.com, LLC
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: AWS
Got: AS16509
Domain expiry

477 days

November 6, 2027

SSL certificate

127 days

Issued by Sectigo Limited

Domain age

35 years, 11 months

Registered November 7, 1990

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

18.65.39.25

Registrar

GoDaddy.com, LLC

Unlocked 4 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 GoDaddy.com, LLC
Created November 7, 1990 (35 years, 11 months ago)
Expires November 6, 2027 (1 years, 6 months)
Last Updated April 19, 2024
Name Servers ns-1037.awsdns-01.org, ns-1935.awsdns-49.co.uk, ns-240.awsdns-30.com, ns-703.awsdns-23.net
DNSSEC Enabled
Hosting
IP Address 18.65.39.25
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

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 24 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
12 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.
7 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
24 ms
Total Time Total request time from DNS lookup through full response.
24 ms

Connection waterfall

DNS Lookup 12 ms TCP Connect 1 ms TLS Handshake 7 ms Server Processing 5 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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