energystar.gov
Homepage | ENERGY STAR
Last scanned Jul 31, 2026, 10:00 PM · 8 views
Overall score
Excellent
Summary
ENERGY STAR® is the simple choice for energy efficiency. This website uses Nginx behind CloudFront CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
ENERGY STAR® is the simple choice for energy efficiency. For more than 20 years, EPA’s ENERGY STAR program has been America’s resource for saving energy and protecting the environment.
Top issues to fix
6 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.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
455 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 24, 2026
- Overall
- 90
- SEO
- 75
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
ENERGY STAR® is the simple choice for energy efficiency. For more than 20 years, EPA’s ENERGY STAR program has been America’s resource for saving energy and protecting the environment.
Meta tags
- Title
- Homepage | ENERGY STAR
- Description
- ENERGY STAR® is the simple choice for energy efficiency. For more than 20 years, EPA’s ENERGY STAR program has been America’s resource for saving energy and protecting the environment.
- Canonical
- https://www.energystar.gov/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.energystar.gov/themes/gesso/dist/images/favicons/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- CloudFront
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- energystar.gov
- Valid from
- Dec 22, 2025
- Valid to
- Dec 21, 2026
- Days until expiry
- 143
- SAN domains
- energystar.gov, www.energystar.gov, portfoliomanager.energystar.gov, cmadmin.energystar.gov, downloads.energystar.gov, eses.energystar.gov, essearch.energystar.gov, esws.energystar.gov, beta.energystar.gov, auth.energystar.gov, data.energystar.gov, ipv6.energystar.gov, ipv6-lbd.energystar.gov, cpmxpfx01.energystar.gov, cpmxpfx02.energystar.gov, image.mail.energystar.gov, click.mail.energystar.gov, cloud.mail.energystar.gov, mail.energystar.gov, mta.mail.energystar.gov, view.mail.energystar.gov, reply.mail.energystar.gov, estar-origin.energystar.gov, pm-origin.energystar.gov
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 4
Links
69 internal · 7 external · 20 broken
Images
20 total · 0 missing alt
Scripts / Styles
5 scripts · 2 stylesheets
JS / CSS size
1.6 KB · 0 B
Page size
45.4 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://energystar.gov
- Final URL
- https://www.energystar.gov/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 455 ms
- HTML size
- 45.4 KB
- Redirect chain
- https://energystar.gov → https://www.energystar.gov/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does energystar.gov use?
- energystar.gov is built with Drupal, Nginx.
- Is energystar.gov secure (HTTPS)?
- Yes. energystar.gov uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Dec 21, 2026.
- Who hosts energystar.gov?
- Hosting provider information for energystar.gov is not available yet.
- What is energystar.gov's SEO score?
- energystar.gov scored 75/100 for SEO in the latest analysis (fair).
- What is energystar.gov's overall website score?
- energystar.gov has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has energystar.gov's score changed over time?
- energystar.gov's overall score has declined by 3 points (from 93 to 90) since Jul 24, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card