qt.io
Qt | Tools for Each Stage of Software Development Lifecycle
Last scanned Aug 1, 2026, 2:00 AM · 9 views
Overall score
Excellent
Summary
All the essential Qt tools for all stages of Software Development Lifecycle: planning, design, development, testing, and deployment. This website uses Google Analytics behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: robots.txt not found.
All the essential Qt tools for all stages of Software Development Lifecycle: planning, design, development, testing, and deployment.
Top issues to fix
4 issues found
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.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
2 issue(s) found
Performance
161 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 25, 2026
- Overall
- 95
- SEO
- 90
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
All the essential Qt tools for all stages of Software Development Lifecycle: planning, design, development, testing, and deployment.
Meta tags
- Title
- Qt | Tools for Each Stage of Software Development Lifecycle
- Description
- All the essential Qt tools for all stages of Software Development Lifecycle: planning, design, development, testing, and deployment.
- Canonical
- https://www.qt.io
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- 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
- Let's Encrypt
- Subject
- b984bb61.sni.cloudflaressl.com
- Valid from
- Jul 6, 2026
- Valid to
- Oct 4, 2026
- Days until expiry
- 64
- SAN domains
- b984bb61.sni.cloudflaressl.com, www.qt.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 11 · H3 0
Links
106 internal · 7 external · 20 broken
Images
42 total · 0 missing alt
Scripts / Styles
32 scripts · 10 stylesheets
JS / CSS size
59.4 KB · 10.5 KB
Page size
217 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://qt.io
- Final URL
- https://www.qt.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 157 ms
- HTML size
- 217 KB
- Redirect chain
- https://qt.io → https://www.qt.io/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does qt.io use?
- qt.io is built with jQuery, Google Analytics.
- Is qt.io secure (HTTPS)?
- Yes. qt.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 4, 2026.
- Who hosts qt.io?
- Hosting provider information for qt.io is not available yet.
- What is qt.io's SEO score?
- qt.io scored 90/100 for SEO in the latest analysis (excellent).
- What is qt.io's overall website score?
- qt.io has an overall SiteGraph score of 95/100, combining SEO, performance, security, and accessibility.
- Has qt.io's score changed over time?
- qt.io's overall score has declined by 1 point (from 96 to 95) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card