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SGSiteGraph

flutter.dev

Flutter - Build apps for any screen

Last scanned Aug 1, 2026, 3:00 PM · 8 views

92

Overall score

Excellent

Summary

Flutter transforms the entire app development process. This website uses Google Analytics. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.

Top issues to fix

5 issues found · 1 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

80

SEO

3 issue(s) found

100

Performance

4 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 25, 2026

Overall
92
SEO
80
Security
90
Performance
100
Accessibility
100

Organization

Company details published in this site's own structured data.

Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.

Meta tags

Title
Flutter - Build apps for any screen
Description
Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.
Canonical
https://flutter.dev/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Flutter - Build apps for any screen
og:description
Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.
og:type
og:url
https://flutter.dev/

Twitter Card

twitter:card
summary
twitter:title
Flutter - Build apps for any screen
twitter:description
Flutter transforms the entire app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
flutter.dev
Valid from
Jul 24, 2026
Valid to
Oct 22, 2026
Days until expiry
81
SAN domains
flutter.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 1 · H2 5 · H3 11

Links

20 internal · 45 external · 20 broken

Images

44 total · 0 missing alt

Scripts / Styles

6 scripts · 6 stylesheets

JS / CSS size

1.0 KB · 2.8 KB

Page size

71.5 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://flutter.dev
Final URL
https://flutter.dev
HTTP status
200
HTTP version
HTTP/2
Response time
3 ms
HTML size
71.5 KB
Redirect chain
https://flutter.dev

See something wrong on this report? Request a correction

Frequently asked questions

What technology does flutter.dev use?
flutter.dev is built with Google Analytics.
Is flutter.dev secure (HTTPS)?
Yes. flutter.dev uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 22, 2026.
Who hosts flutter.dev?
Hosting provider information for flutter.dev is not available yet.
What is flutter.dev's SEO score?
flutter.dev scored 80/100 for SEO in the latest analysis (great).
What is flutter.dev's overall website score?
flutter.dev has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
Has flutter.dev's score changed over time?
flutter.dev's overall score has declined by 1 point (from 93 to 92) since Jul 25, 2026.