hii.com
HII | America's Seapower Company
Last scanned Aug 24, 2026, 1:22 PM · 1 view
Overall score
Great
Summary
HII is America's largest military shipbuilding company, delivering advanced warships, submarines, and mission technology solutions in service of the nation. This website uses Next.js hosted on AWS behind Vercel CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance good (75/100). Top issue: Meta description longer than 160 characters.
HII
HII is America's largest military shipbuilding company, delivering advanced warships, submarines, and mission technology solutions in service of the nation.
- United States
- Hosted on AWS
Top issues to fix
5 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
SEO
2 issue(s) found
Performance
276 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- 8778712058
Source: https://www.hii.com/contact
Meta tags
- Title
- HII | America's Seapower Company
- Description
- America's largest shipbuilder with 140+ years advancing U.S. national security — delivering powerful naval vessels, unmanned systems, and all-domain defense technologies.
- Canonical
- https://hii.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA |
|
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.hii.com
- Valid from
- Aug 19, 2026
- Valid to
- Nov 17, 2026
- Days until expiry
- 84
- SAN domains
- www.hii.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 8 · H3 4
Links
28 internal · 6 external · 0 broken
Images
28 total · 0 missing alt
Scripts / Styles
43 scripts · 3 stylesheets
JS / CSS size
1.1 MB · 326 KB
Page size
161 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 3
- sitemap.xml
- Found
- URLs in sitemap
- 287
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Careers
Scan details
- Requested URL
- https://hii.com
- Final URL
- https://www.hii.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 273 ms
- HTML size
- 161 KB
- Redirect chain
- https://hii.com → https://www.hii.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does hii.com use?
- hii.com is built with Next.js, Google Analytics.
- Is hii.com secure (HTTPS)?
- Yes. hii.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 17, 2026.
- Who hosts hii.com?
- hii.com is hosted on AWS, behind Vercel CDN.
- What is hii.com's SEO score?
- hii.com scored 90/100 for SEO in the latest analysis (excellent).
- What is hii.com's overall website score?
- hii.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- What company operates hii.com?
- hii.com is operated by HII. HII is America's largest military shipbuilding company, delivering advanced warships, submarines, and mission technology solutions in service of the nation.
- Is hii.com hiring?
- Yes. hii.com has 10 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card