What powers observablehq.com?
Last seen Jun 2026 · 33 technologies across 17 categories
Analytics
CDN
CMS
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Message boards
Miscellaneous
Payment processors
Performance
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Security
UI frameworks
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| plot | #7 | 950 |
| archimedes spiral | #4 | 360 |
| acronym maker | #7 | 310 |
| mr doob | #6 | 250 |
| wen moon | #1 | 220 |
| d3 visualization examples | #1 | 220 |
| d3 examples | #1 | 220 |
| actblue | #20 | 220 |
| enigma decoder | #16 | 210 |
| acronym builder | #10 | 170 |
| puerto rico map united states | #83 | 160 |
| d3 charts examples | #2 | 140 |
| vim write and quit | #5 | 140 |
| rotation cipher | #19 | 130 |
| wind force scale | #46 | 130 |
| hidden markov model | #39 | 130 |
| fantasy trade calculator | #36 | 130 |
| cube unfolded | #1 | 120 |
| mister doob | #12 | 110 |
| per capita calculator | #1 | 110 |
| enigma machine | #22 | 110 |
| sourdough calculator | #4 | 110 |
| d3js | #4 | 110 |
| caesar shift cipher | #38 | 100 |
| enigma cipher machine | #90 | 100 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 76% desktop
- 22% phone
- 1% tablet
United States
India
Japan
Germany
United Kingdom
Brazil
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.91 / 10 · ranked #8,939 of all domains
2,242 referring domains · OpenPageRank
Search traffic
16,600 est. monthly organic visits (US)
11,978 keywords in Google's top 30
Core Web Vitals
| LCP | 2.6 s |
| INP | 100 ms |
| CLS | 1.1 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 5.0 MB · 131 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| observablehq.com | 22 |
| talk.observablehq.com | 17 |
| beta.observablehq.com | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Bot Management Jun 2026
- detected Priority Hints May 2026
- detected RSS May 2026
- detected core-js Apr 2026
- dropped Heroku Jan 2026
- dropped Priority Hints Jan 2026
- dropped Cloudflare Bot Management Dec 2025
- detected GSAP Aug 2025