seasonic.com
Seasonic Power Supplies | Modular, Silent, ATX 3.1 PSUs
Last scanned Jul 29, 2026, 11:00 PM · 11 views
Overall score
Great
Summary
Welcome to Seasonic, your source for premium Power Supplies and PC components. This website uses WordPress behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: robots.txt not found.
Welcome to Seasonic, your source for premium Power Supplies and PC components. Explore high-performance products and innovative solutions.
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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.
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.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
932 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 22, 2026
- Overall
- 86
- SEO
- 90
- Security
- 65
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Welcome to Seasonic, your source for premium Power Supplies and PC components. Explore high-performance products and innovative solutions.
Meta tags
- Title
- Seasonic Power Supplies | Modular, Silent, ATX 3.1 PSUs
- Description
- Welcome to Seasonic, your source for premium Power Supplies and PC components. Explore high-performance products and innovative solutions.
- Canonical
- https://seasonic.com/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, viewport-fit=cover
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- seasonic.com
- Valid from
- Jul 5, 2026
- Valid to
- Oct 3, 2026
- Days until expiry
- 65
- SAN domains
- seasonic.com, *.seasonic.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 3
Links
80 internal · 26 external · 20 broken
Images
103 total · 0 missing alt
Scripts / Styles
106 scripts · 43 stylesheets
JS / CSS size
65.8 KB · 18.7 KB
Page size
382 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://seasonic.com
- Final URL
- https://seasonic.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 925 ms
- HTML size
- 382 KB
- Redirect chain
- https://seasonic.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does seasonic.com use?
- seasonic.com is built with PHP, WordPress, WooCommerce, jQuery, Cloudflare Analytics.
- Is seasonic.com secure (HTTPS)?
- Yes. seasonic.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 3, 2026.
- Who hosts seasonic.com?
- Hosting provider information for seasonic.com is not available yet.
- What is seasonic.com's SEO score?
- seasonic.com scored 90/100 for SEO in the latest analysis (excellent).
- What is seasonic.com's overall website score?
- seasonic.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
- Has seasonic.com's score changed over time?
- seasonic.com's overall score has declined by 1 point (from 87 to 86) since Jul 22, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card