flowingdata.com
FlowingData - Data Visualization and Statistics
Last scanned Aug 3, 2026, 1:00 PM · 4 views
Overall score
Great
Summary
An exploration of how we use analysis and visualization to understand data and ourselves. This website uses WordPress behind Cloudflare CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.
An exploration of how we use analysis and visualization to understand data and ourselves.
Top issues to fix
7 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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
313 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 89
- SEO
- 70
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
An exploration of how we use analysis and visualization to understand data and ourselves.
Meta tags
- Title
- FlowingData - Data Visualization and Statistics
- Description
- An exploration of how we use analysis and visualization to understand data and ourselves.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, user-scalable=yes
- Robots meta
- max-image-preview:large
- 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
- flowingdata.com
- Valid from
- Jun 12, 2026
- Valid to
- Sep 10, 2026
- Days until expiry
- 38
- SAN domains
- *.flowingdata.com, flowingdata.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 20 · H2 2 · H3 25
Links
127 internal · 27 external · 20 broken
Images
32 total · 3 missing alt
Scripts / Styles
23 scripts · 22 stylesheets
JS / CSS size
7.7 KB · 70.1 KB
Page size
197 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- Multiple H1 headings found
- 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://flowingdata.com
- Final URL
- https://flowingdata.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 309 ms
- HTML size
- 197 KB
- Redirect chain
- https://flowingdata.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does flowingdata.com use?
- flowingdata.com is built with WordPress, jQuery, Cloudflare Analytics.
- Is flowingdata.com secure (HTTPS)?
- Yes. flowingdata.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 10, 2026.
- Who hosts flowingdata.com?
- Hosting provider information for flowingdata.com is not available yet.
- What is flowingdata.com's SEO score?
- flowingdata.com scored 70/100 for SEO in the latest analysis (fair).
- What is flowingdata.com's overall website score?
- flowingdata.com has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has flowingdata.com's score changed over time?
- flowingdata.com's overall score has declined by 1 point (from 90 to 89) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card