datasette.io
Datasette: An open source multi-tool for exploring and publishing data
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Great
Summary
This website uses Plausible Analytics hosted on FLY - Fly.io, Inc., US. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
- United States
- Hosted on FLY - Fly.io, Inc., US
Top issues to fix
9 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
467 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Datasette: An open source multi-tool for exploring and publishing data
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- FLY - Fly.io, Inc., US
- CDN provider
- —
- IP address
- 66.241.124.47
- ASN
- AS40509 (FLY - Fly.io, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- datasette.io
- Valid from
- Jul 8, 2026
- Valid to
- Oct 6, 2026
- Days until expiry
- 72
- SAN domains
- datasette.io
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 5 · H3 28
Links
31 internal · 155 external · 1 broken
Images
7 total · 0 missing alt
Scripts / Styles
2 scripts · 2 stylesheets
JS / CSS size
5.4 KB · 7.2 KB
Page size
57.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 5
- sitemap.xml
- Found
- URLs in sitemap
- 219
SEO issues
- Title longer than 60 characters
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://datasette.io
- Final URL
- https://datasette.io
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 466 ms
- HTML size
- 57.9 KB
- Redirect chain
- https://datasette.io
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does datasette.io use?
- datasette.io is built with Plausible Analytics.
- Is datasette.io secure (HTTPS)?
- Yes. datasette.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
- Who hosts datasette.io?
- datasette.io is hosted on FLY - Fly.io, Inc., US.
- What is datasette.io's SEO score?
- datasette.io scored 70/100 for SEO in the latest analysis (fair).
- What is datasette.io's overall website score?
- datasette.io has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card