dart.dev
Dart programming language
Last scanned Aug 3, 2026, 12:00 AM · 8 views
Overall score
Great
Summary
Dart is an approachable, portable, and productive language for high-quality apps on any platform. This website uses Google Analytics. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.
Dart is an approachable, portable, and productive language for high-quality apps on any platform.
Top issues to fix
7 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
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.
+1 more issue — details in the sections below.
SEO
5 issue(s) found
Performance
4 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 85
- SEO
- 65
- Security
- 90
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Dart is an approachable, portable, and productive language for high-quality apps on any platform.
Meta tags
- Title
- Dart programming language
- Description
- Dart is an approachable, portable, and productive language for high-quality apps on any platform.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- 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
- dart.dev
- Valid from
- Jul 3, 2026
- Valid to
- Oct 1, 2026
- Days until expiry
- 59
- SAN domains
- dart.dev
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 1 · H3 1
Links
153 internal · 22 external · 20 broken
Images
16 total · 0 missing alt
Scripts / Styles
7 scripts · 4 stylesheets
JS / CSS size
1.4 KB · 3.1 KB
Page size
79.3 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://dart.dev
- Final URL
- https://dart.dev
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 3 ms
- HTML size
- 79.3 KB
- Redirect chain
- https://dart.dev
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Frequently asked questions
- What technology does dart.dev use?
- dart.dev is built with Google Analytics.
- Is dart.dev secure (HTTPS)?
- Yes. dart.dev uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 1, 2026.
- Who hosts dart.dev?
- Hosting provider information for dart.dev is not available yet.
- What is dart.dev's SEO score?
- dart.dev scored 65/100 for SEO in the latest analysis (fair).
- What is dart.dev's overall website score?
- dart.dev has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- Has dart.dev's score changed over time?
- dart.dev's overall score has declined by 3 points (from 88 to 85) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card