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datasette.io

Datasette: An open source multi-tool for exploring and publishing data

Last scanned Jul 26, 2026, 5:17 AM · 1 view

82

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

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

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

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

+3 more issues — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

467 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

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

OpenGraph & Twitter Card

OpenGraph

og:title
Datasette
og:description
Datasette is a tool for exploring and publishing data. It helps people take data of any shape, analyze and explore it, and publish it as an interactive website and accompanying API.
og:type
website
og:url
https://datasette.io/

Twitter Card

twitter:card
summary_large_image
twitter:title
Datasette
twitter:description
Datasette is a tool for exploring and publishing data. It helps people take data of any shape, analyze and explore it, and publish it as an interactive website and accompanying API.

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

TypeValue
A
  • 66.241.124.47
AAAA
  • 2a09:8280:1::75:5f02:0
MX
  • route1.mx.cloudflare.net
  • route2.mx.cloudflare.net
  • route3.mx.cloudflare.net
TXT
  • google-site-verification=wHw15S1fkNOMzk42PEVK6XLnSG9qEfyq6paO8_G4IVU
NS
  • ns1.vercel-dns.com
  • ns2.vercel-dns.com
CAA
  • 0 issue "amazon.com"
  • 0 issue "comodoca.com"
  • 0 issue "sectigo.com"
  • 0 issue "digicert.com"
  • 0 issue "letsencrypt.org"
  • 0 issue "pki.goog"
CNAME
IPv6 supportYes

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

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.