Sites built with Evercookie
JavaScript library that stores persistent browser identifiers across multiple storage mechanisms.
Get told when a new site ships with Evercookie.
Stackdar watches every launch we detect and sends you the ones using Evercookie, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workFound via: StackScope Wider Web 40
Evercookie has been detected on 40 launches we've crawled, with 33 of those in September 2026 (0.0% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection was today.
It's most commonly paired with Cloudflare, HTTP/3, and Cloudflare DNS. By product type, the launches using it are most often Finance (94%) and E-commerce (6%). By domain ending, launches using it are 1.9 times as likely as the average launch to live on a .com domain.
What kind of products ship with Evercookie
32 launches
Domain endings using Evercookie
40 sites
- .com 92.50%
- .net 5.00%
Share of new sites using Evercookie
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites.
Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
jQuery
|
14.58% | 35.57% |
| #2 | – |
React Router
|
6.28% | 15.31% |
| #3 | – |
Motion
|
5.89% | 14.37% |
| #4 | – |
TanStack Router
|
4.12% | 10.05% |
| #5 | – |
Swiper
|
3.75% | 9.15% |
| … | ||||
| #437 | ▼204 | Evercookie Current page | <0.01% | <0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #796 in Javascript Library, down from #592 in July. All 1336 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
Cloudflare
|
36 |
| HTTP/3 | 36 |
Cloudflare DNS
|
34 |
Sentry
|
31 |
| LoansAccount | 31 |
Tools most often detected on the same sites as Evercookie.
40 sites across the wider web use Evercookie
None of them is a product launch we list individually, so there is nothing to show here. They still count towards the figures above. How StackScope Discovery works
The StackScope API serves all 40 sites using Evercookie, filterable and exportable, from £15 a month.