Sites built with Spark Plugin
Squarespace add-on suite for forms, popups, and customisations.
Get told when a new site ships with Spark Plugin.
Stackdar watches every launch we detect and sends you the ones using Spark Plugin, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work37 sites
36 found by StackScope, 1 via launch platforms
- StackScope Wider Web 36
- PeerPush 1
Spark Plugin has been detected on 37 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: louislynn, yesterday.
It's most commonly paired with Squarespace, HSTS, and Modernizr. By product type, the launches using it are most often Content (20%), Health (20%), and Marketing (20%). By domain ending, launches using it are 1.5 times as likely as the average launch to live on a .com domain.
What kind of products ship with Spark Plugin
10 launches
Domain endings using Spark Plugin
37 sites
- .com 64.86%
- .ca 8.11%
- .au 5.41%
- .nz 5.41%
- .uk 5.41%
- .ai 2.70%
- .co 2.70%
Share of new sites using Spark Plugin
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. 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.
Site Builder leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
Wix
|
2.57% | 36.87% |
| #2 | – |
Squarespace
|
1.97% | 28.31% |
| #3 | – |
Mahally
|
0.19% | 2.73% |
| #4 | ▲2 |
Duda
|
0.16% | 2.36% |
| #5 | ▼2 |
Webflow
|
0.15% | 2.20% |
| … | ||||
| #172 | ▼16 | Spark Plugin Current page | <0.01% | 0.02% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Site Builder tool.Among August launches it ranked #173 in Site Builder, down from #157 in July. All 1598 in Site Builder →
Often used with
| Tool | Sites |
|---|---|
|
Squarespace
|
37 |
| HSTS | 36 |
Modernizr
|
35 |
Squarespace DNS
|
31 |
Google Search Console
|
15 |
Tools most often detected on the same sites as Spark Plugin.
Recent launches we can show
1 of the 37 sites using Spark Plugin are product launches we list individually. The other 36 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 37 sites using Spark Plugin, filterable and exportable, from £15 a month.