What powers jspecify.dev?
Last seen Jun 2026 · 9 technologies across 7 categories
Caching
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since Sep 2022
CDN
Fastly
since Sep 2022
Documentation
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React
since Sep 2022
Miscellaneous
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GitHub Pages
since Sep 2022
Security
HSTS
since Jan 2023
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| nullness | #5 | 2 |
| java nullable annotation | #6 | 2 |
| nullable | #18 | 1 |
| the annotation for nullable reference types | #68 | 0 |
| any specification | #53 | 0 |
| nonnull annotation java | #13 | 0 |
| non null java | #18 | 0 |
| nullable java | #46 | 0 |
| nullable java | #10 | 0 |
| nullable annotation | #80 | 0 |
| null class | #26 | 0 |
| parametersarenonnullbydefault | #27 | 0 |
| j dev | #69 | 0 |
| javax/annotation/nullable | #28 | 0 |
| javax annotation nullable | #57 | 0 |
| javax annotation nullable | #17 | 0 |
| java objects::nonnull | #36 | 0 |
| java nullable | #44 | 0 |
| java null parameter | #31 | 0 |
| java nonnull annotation | #12 | 0 |
| jsr305 | #38 | 0 |
| jsr-305 | #39 | 0 |
| how to get type: null | #78 | 0 |
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
- 66% desktop
- 34% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.95 / 10 · ranked #112,978 of all domains
80 referring domains · OpenPageRank
Search traffic
5 est. monthly organic visits (US)
23 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 0.3 MB · 19 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.