Pace.js on new websites
Automatic page load progress bar library for web pages.
1,736 sites
1,727 found by StackScope, 9 via launch platforms
- StackScope Wider Web 1,688
- StackScope Discovery (Indie) 39
- Product Hunt 9
Pace.js appeared on about 490 new sites in the last 30 days.
These figures cover websites that went live since April 2026, not the web as a whole.
Get told when a new site ships with Pace.js.
491 new sites with Pace.js first seen in the last 30 days.
Stackdar watches every launch we detect and sends you the ones using Pace.js, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workShare of new sites using Pace.js
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.
Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.
The shaded parts of the chart are measured against a different set of sites.
Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: 8 July to 10 September 2026, before we improved our infrastructure to 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 10 September. 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 these lines without the technology itself changing. For a single continuous measure, switch to launch platforms.
What kind of products ship with Pace.js
359 sites with a known product type, all time
Domain endings using Pace.js
1,735 sites, all time
- .com 57.93%
- .in 5.30%
- .online 5.13%
- .org 3.23%
- .net 2.77%
- .br 2.65%
- .xyz 2.54%
- .site 2.31%
- .uk 1.56%
- .ca 1.27%
- .cloud 1.10%
- .store 1.10%
- .live 1.04%
- .me 1.04%
- .it 0.81%
Country
Country likely for 363 of 1,736 sites (20.9%), all time.
How we know
Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
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India 17.1%
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Brazil 12.7%
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Iran 11.3%
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South Korea 9.9%
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United Kingdom 7.2%
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United States 4.4%
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Italy 4.1%
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France 3.9%
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Canada 3.6%
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China 3.6%
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Australia 3.3%
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Japan 2.8%
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Poland 2.2%
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Spain 1.9%
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Switzerland 1.7%
Javascript Library leaders
| Tool | % of sites, all time | % of category, all time | ||
|---|---|---|---|---|
| #1 | – |
|
14.14% | 34.53% |
| #2 | – |
|
6.65% | 16.24% |
| #3 | – |
|
6.01% | 14.66% |
| #4 | – |
|
4.38% | 10.68% |
| #5 | – |
|
3.40% | 8.31% |
| … | ||||
| #108 | ▼11 | Pace.js Current page | 0.03% | 0.07% |
Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Javascript Library tool.Pace.js is typically used alongside jQuery rather than instead of it.Among September launches it ranked #117 in Javascript Library, down from #106 in August. All 1531 in Javascript Library →
Recent launches using Pace.js
48 of the 1,736 sites using Pace.js are product launches we list individually. The other 1,688 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works
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Also detected
Showing the most recent 12 of 48.
The StackScope API serves all 1,736 sites using Pace.js, filterable and exportable, from £15 a month.