certainteed.com
Let's Build for Tomorrow. Today | CertainTeed
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Great
Summary
CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings. This website uses Drupal behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance good (80/100). Top issue: No structured data (JSON-LD) found.
CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
Top issues to fix
5 issues found
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.
Sluggish estimated load (3.7s)
PerformanceTarget under 3 seconds: enable compression and serve static assets from a CDN.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
3.67 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
Meta tags
- Title
- Let's Build for Tomorrow. Today | CertainTeed
- Description
- CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
- Canonical
- https://www.certainteed.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.certainteed.com/themes/custom/certainteed/favicon/site.webmanifest
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
- Let's Encrypt
- Subject
- www.certainteed.com
- Valid from
- Jul 26, 2026
- Valid to
- Oct 24, 2026
- Days until expiry
- 87
- SAN domains
- www.certainteed.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 10 · H3 2
Links
22 internal · 4 external · 20 broken
Images
28 total · 2 missing alt
Scripts / Styles
27 scripts · 5 stylesheets
JS / CSS size
12.6 KB · 7.7 KB
Page size
110 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- 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://certainteed.com
- Final URL
- https://www.certainteed.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 3.66 s
- HTML size
- 110 KB
- Redirect chain
- https://certainteed.com → https://www.certainteed.com/
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Frequently asked questions
- What technology does certainteed.com use?
- certainteed.com is built with Drupal, Google Analytics.
- Is certainteed.com secure (HTTPS)?
- Yes. certainteed.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 24, 2026.
- Who hosts certainteed.com?
- Hosting provider information for certainteed.com is not available yet.
- What is certainteed.com's SEO score?
- certainteed.com scored 80/100 for SEO in the latest analysis (great).
- What is certainteed.com's overall website score?
- certainteed.com has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card