hsdl.org

hsdl.org | Homeland Security Digital Library at NPS

Last scanned Jul 27, 2026, 9:43 AM · 2 views

78

Overall score

Fair

Summary

The nation’s premier collection of resources related to homeland security policy, strategy, and organizational management. This website uses WordPress hosted on AWS. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance fair (55/100). Top issue: Multiple H1 headings found.

The nation’s premier collection of resources related to homeland security policy, strategy, and organizational management.

United States

Hosted on AWS

Top issues to fix

5 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

90

SEO

2 issue(s) found

55

Performance

2.10 s

70

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

The nation’s premier collection of resources related to homeland security policy, strategy, and organizational management.

X (Twitter)YouTube Facebook

Contact

Email, phone, and address published on this site's own pages.

Email: chdstech@nps.edu hsdl@nps.edu

Meta tags

Title: hsdl.org | Homeland Security Digital Library at NPS
Description: The nation’s premier collection of resources related to homeland security policy, strategy, and organizational management.
Canonical: https://www.hsdl.org/c/
Language: en-US
Charset: UTF-8
Viewport: width=device-width, initial-scale=1
Robots meta: index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

Technologies

Detected frameworks, languages, and tools.

Vue.js PHP WordPress jQuery Google Analytics Apache

Hosting & CDN

Hosting provider: AWS
CDN provider: —
IP address: 15.200.179.208
ASN: AS8987 (GOVCLOUD - Amazon, US)

DNS records

Type	Value
A	15.200.179.208
AAAA	—
MX	mx2.zoho.com mx3.zoho.com mx.zoho.com
TXT	google-site-verification=PJdJQ7ZH8sqB6VjUWjQOo3unE79wlfpA5bucWr6eXjE
NS	ns-577.awsdns-08.net ns-1726.awsdns-23.co.uk ns-37.awsdns-04.com ns-1159.awsdns-16.org
CAA	—
CNAME	hsdl.org
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Sectigo Limited
Subject: chds.us
Valid from: Nov 19, 2025
Valid to: Dec 20, 2026
Days until expiry: 146
SAN domains: chds.us, hsaj.org, hsdl.org, www.chds.us, www.hsaj.org, www.hsdl.org

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: none · 1 cookie(s) observed

Content & assets

Headings

H1 4 · H2 13 · H3 3

Links

46 internal · 8 external · 0 broken

Images

24 total · 0 missing alt

Scripts / Styles

34 scripts · 38 stylesheets

JS / CSS size

1.6 MB · 611 KB

Page size

354 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Multiple H1 headings found
sitemap.xml not found

Scan details

Requested URL: https://hsdl.org
Final URL: https://www.hsdl.org/c/
HTTP status: 200
HTTP version: HTTP/2
Response time: 2.10 s
HTML size: 354 KB
Redirect chain: https://hsdl.org → https://hsdl.org/c/ → https://www.hsdl.org/c/

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Frequently asked questions

What technology does hsdl.org use?: hsdl.org is built with Vue.js, PHP, WordPress, jQuery, Google Analytics, Apache.
Is hsdl.org secure (HTTPS)?: Yes. hsdl.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Dec 20, 2026.
Who hosts hsdl.org?: hsdl.org is hosted on AWS.
What is hsdl.org's SEO score?: hsdl.org scored 90/100 for SEO in the latest analysis (excellent).
What is hsdl.org's overall website score?: hsdl.org has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.