es5-shim on new websites
Polyfill that adds ECMAScript 5 methods to old JavaScript engines.
- Sites using es5-shim
- 153
- since Aug 2026
- Last 30 days
- 139
-
new sites, to Nov 11
6 in the 30 days before - Last 7 days
- 135
-
new sites
3 in the week before
| First seen | Aug 14, 2026 |
|---|---|
| Last seen | Nov 12, 2026 |
| Website | github.com |
What we found
- es5-shim appeared on about 140 new sites in the last 30 days.[1]
- Nine in ten new es5-shim sites also use jQuery.
Share of new sites using es5-shim
The line is the 7-day average share of new sites that use es5-shim, since 10 September.
Who uses es5-shim
| Type | Sites | Share | Bar |
|---|---|---|---|
| E-commerce | 9 | 19.2% | |
| Finance | 8 | 17.0% | |
| Health | 7 | 14.9% | |
| Content | 5 | 10.6% | |
| Education | 5 | 10.6% | |
| Social | 3 | 6.4% | |
| Design | 2 | 4.3% | |
| Developer Tools | 2 | 4.3% | |
| Directory | 2 | 4.3% | |
| AI | 1 | 2.1% | |
| Games | 1 | 2.1% | |
| Marketing | 1 | 2.1% |
| Country | Sites | Share | Bar |
|---|---|---|---|
 Brazil |
4 | 15.4% | |
 Canada |
3 | 11.5% | |
 Netherlands |
3 | 11.5% | |
 US |
3 | 11.5% | |
 Germany |
2 | 7.7% | |
 UK |
2 | 7.7% | |
 Poland |
2 | 7.7% | |
 Australia |
1 | 3.9% | |
 Spain |
1 | 3.9% | |
 France |
1 | 3.9% | |
 Japan |
1 | 3.9% | |
 South Korea |
1 | 3.9% |
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .com | 85 | 57.1% | |
| .org | 8 | 5.4% | |
| .net | 7 | 4.7% | |
| .uk | 4 | 2.7% | |
| .br | 3 | 2.0% | |
| .ca | 3 | 2.0% | |
| .eu | 3 | 2.0% | |
| .in | 3 | 2.0% | |
| .nl | 3 | 2.0% | |
| .pl | 3 | 2.0% | |
| .ai | 2 | 1.3% | |
| .de | 2 | 1.3% |
Javascript Library on new sites
| # | Movement | Tool | Share of category[3] | Bar | |
|---|---|---|---|---|---|
| 1 | – |
jQuery
|
34.1% | ||
| 2 | – | jQuery Migrate | 18.7% | ||
| 3 | – |
React Router
|
15.9% | ||
| 4 | ▼1 |
Motion
|
13.8% | ||
| 5 | ▲1 |
TanStack Router
|
11.0% | ||
| 6 | ▼1 |
Swiper
|
8.0% | ||
| 7 | ▲1 |
ES Module Shims
|
7.2% | ||
| 8 | – |
js-cookie
|
6.1% | ||
| 9 | ▼1 |
Modernizr
|
5.7% | ||
| 10 | ▲1 |
GSAP
|
4.7% | ||
| 11 | ▲1 |
Lenis
|
3.4% | ||
| 12 | ▲3 |
Three.js
|
3.2% | ||
| … | |||||
| 432 | ▲117 |
es5-shim
|
<0.1% | ||
All-time shares across the new sites we track: of all of them, and of the sites using any Javascript Library tool. es5-shim is typically used alongside jQuery rather than instead of it. Among October launches it ranked #781 in Javascript Library, up from #898 in September. All 1832 in Javascript Library
Often used with es5-shim
| Tool | Sites with both | vs all new sites |
|---|---|---|
MailPoet
|
55 | 1869x |
| Parsley.js | 89 | 1530x |
Twemoji
|
72 | 93x |
| jQuery Migrate | 88 | 7.6x |
Font Awesome
|
63 | 6.6x |
Tools that turn up far more often on es5-shim sites than on new sites in general, and how many times as common each one is there.
Recently launched products built on es5-shim
6 of the 153 sites using es5-shim are product launches we list individually. The other 147 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.
South Africa
Watches, exports and the API give you all 153 sites using es5-shim, from £15 a month.
Notes
- These figures cover websites that went live since April 2026, not the web as a whole.
- 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. We count a country only where it is stated plainly enough to be sure: a governing-law clause or company registration number on a legal page, a phone country code, or a country domain ending. Sites that publish none are not counted at all.
- Some products people expect to see here are filed under a related category: UI Library.
How this page is made
FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards es5-shim when we detect es5-shim on it at that look.
Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites