← All technologies

Sites built with ES Module Shims

Polyfill that enables import maps and ES module features in browsers.

#8 of 830 in Javascript Library First seen: Jul 2, 2026 Last seen: Aug 20, 2026 Website: github.com
Stackdar alerts

Get told when a new site ships with ES Module Shims.

Stackdar watches every launch we detect and sends you the ones using ES Module Shims, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

25,024 sites

25,015 found by StackScope, 9 via launch platforms

StackScope Wider Web 24,921 StackScope Discovery (Indie) 94 Product Hunt 7 PeerPush 2
  • StackScope Wider Web 24,921
  • StackScope Discovery (Indie) 94
  • Product Hunt 7
  • PeerPush 2
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 2.2% -2.5pp
Most used with HSTS, Google Search Console, Cloudflare
Top product types E-commerce, Health, Games

ES Module Shims has been detected on 25,024 launches we've crawled, with 20471 of those in August 2026 (2.6% of the month's launches so far). The 7-day rolling share is 2.2%, down 2.5 percentage points from last week. Most recent detection: ToiletTix | Kit de toilettage aspirant 6-en-1 pour chiens et chats, today.

It's most commonly paired with HSTS, Google Search Console, and Cloudflare. By product type, the launches using it are most often E-commerce (73%), Health (10%), and Games (3%). By estimated origin, the United States (21%) and Canada (20%) lead close together. By domain ending, launches using it are 36.7 times as likely as the average launch to live on a .store domain.

What kind of products ship with ES Module Shims

7,100 launches

E-commerce
72.63%
Health
10.27%
Games
3.00%
Design
2.97%
Productivity
1.99%
Social
1.97%
Content
1.83%
Education
1.55%
Finance
1.25%
Developer Tools
1.24%
Marketing
0.82%
Hiring & HR
0.21%
AI
0.15%
Crypto
0.07%
Directory
0.04%

Domain endings using ES Module Shims

25,027 sites

  • .com 48.60%
  • .store 20.34%
  • .co 7.82%
  • .us 4.06%
  • .ca 3.80%
  • .uk 3.54%
  • .in 3.03%
  • .online 2.82%
  • .nz 0.88%
  • .net 0.88%
  • .site 0.64%
  • .org 0.47%
  • .se 0.37%
  • .ch 0.32%
  • .xyz 0.32%

Country-coded domains

4,739 of 25,024 sites. Mostly read from the domain ending, so the US is undercounted.

  • United States United States 20.97%
  • Canada Canada 20.07%
  • United Kingdom United Kingdom 18.95%
  • India India 16.84%
  • New Zealand New Zealand 4.60%
  • China China 4.03%
  • Switzerland Switzerland 2.07%
  • Sweden Sweden 1.96%
  • France France 1.48%
  • Germany Germany 1.39%
  • Australia Australia 1.22%
  • Italy Italy 0.76%
  • Netherlands Netherlands 0.68%
  • Spain Spain 0.65%
  • Argentina Argentina 0.57%

Share of new sites using ES Module Shims

Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.

2.2%
last 7 days
-2.5pp vs prior week
2.6%
August so far
20,471 of 798,803 sites
25,024
sites all time
since Jul 2026
ES Module Shims daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 8% 4% 0% Jul Aug Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Jun 25 · 0 / 618 = 0.0% Jun 26 · 0 / 534 = 0.0% Jun 27 · 0 / 431 = 0.0% Jun 28 · 0 / 383 = 0.0% Jun 29 · 0 / 501 = 0.0% Jun 30 · 0 / 801 = 0.0% Jul 1 · 0 / 795 = 0.0% Jul 2 · 1 / 604 = 0.2% Jul 3 · 0 / 497 = 0.0% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 551 = 0.0% Jul 7 · 1 / 1167 = 0.1% Jul 8 · 72 / 12565 = 0.6% Jul 9 · 105 / 23710 = 0.4% Jul 10 · 95 / 22514 = 0.4% Jul 11 · 0 / 15954 = 0.0% Jul 12 · 826 / 20261 = 4.1% Jul 13 · 476 / 20891 = 2.3% Jul 14 · 391 / 20371 = 1.9% Jul 15 · 247 / 17211 = 1.4% Jul 16 · 155 / 14236 = 1.1% Jul 17 · 339 / 19685 = 1.7% Jul 18 · 216 / 22626 = 1.0% Jul 19 · 234 / 25896 = 0.9% Jul 20 · 199 / 22523 = 0.9% Jul 21 · 175 / 21594 = 0.8% Jul 22 · 203 / 23154 = 0.9% Jul 23 · 128 / 16802 = 0.8% Jul 24 · 96 / 12779 = 0.8% Jul 25 · 75 / 8912 = 0.8% Jul 26 · 150 / 19896 = 0.8% Jul 27 · 206 / 33715 = 0.6% Jul 28 · 6 / 37982 = 0.0% Jul 29 · 2 / 49842 = 0.0% Jul 30 · 3 / 43658 = 0.0% Jul 31 · 7 / 50732 = 0.0% Aug 1 · 10 / 50173 = 0.0% Aug 2 · 12 / 49478 = 0.0% Aug 3 · 10 / 47965 = 0.0% Aug 4 · 6 / 37149 = 0.0% Aug 5 · 1701 / 32493 = 5.2% Aug 6 · 1712 / 36285 = 4.7% Aug 7 · 2114 / 37648 = 5.6% Aug 8 · 2737 / 39501 = 6.9% Aug 9 · 1683 / 33949 = 5.0% Aug 10 · 966 / 28596 = 3.4% Aug 11 · 981 / 31763 = 3.1% Aug 12 · 1025 / 33051 = 3.1% Aug 13 · 1327 / 49313 = 2.7% Aug 14 · 1207 / 50994 = 2.4% Aug 15 · 1154 / 50943 = 2.3% Aug 16 · 1164 / 51232 = 2.3% Aug 17 · 767 / 40535 = 1.9% Aug 18 · 1000 / 52246 = 1.9% Aug 19 · 895 / 45489 = 2.0%
Jun 25, 2026 56 days Aug 19, 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.

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

Javascript Library leaders

Tool % of launches % of category
#1 ▲1 jQuery 12.75% 32.42%
#2 ▼2 Motion 7.41% 18.83%
#3 ▲1 React Router 7.24% 18.40%
#4 – TanStack Router 4.25% 10.82%
#5 ▲5 Swiper 3.13% 7.97%
…
#8 ES Module Shims Current page 1.74% 4.42%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.ES Module Shims is typically used alongside jQuery rather than instead of it. All 830 in Javascript Library →

Often used with

Tool Launches
HSTS 9
Google Search Console 8
Cloudflare 8
Shopify 7
Google Analytics 7

Tools most often detected on the same launches as ES Module Shims.

Recent launches we can show

103 of the 25,024 sites using ES Module Shims are product launches we list individually. The other 24,921 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

ToiletTix | Kit de toilettage aspirant 6-en-1 pour chiens et chats Aug 20, 2026 Wheelie Coach - E-Bike Wheelie Balance Trainer & Loop-Out Alarm Aug 19, 2026 Health Seven Oceans Rations | Emergency Food Shop | Halal SOLAS NATO ISO BP-5 Aug 19, 2026 Serial Seal™ — Custom Holographic Serial Seals™ for Collectors – serialseal.com Aug 19, 2026 E-commerce APREKI Aug 19, 2026 Education Screenshot of Repenic New Smart Switches & Socketes, a launch using ES Module Shims Repenic New Smart Switches & Socketes Aug 19, 2026 · score 9.1 United Kingdom SendWrench | Shop software for diesel and performance shops Aug 19, 2026 Productivity Brushloo - brosses toilettes à tête jetable Aug 19, 2026 CertInstructor | Learn from Certified Instructors. Get Certified. Aug 19, 2026 Education Abelissa | The fold-down makeup bag Aug 18, 2026 E-commerce NOVA for Teacher – Nova for Teachers Aug 18, 2026 Education Client Onboard Kit — Sistema de onboarding para freelancers Aug 17, 2026 Productivity

Showing the most recent 12 of 103.

The StackScope API serves all 25,024 sites using ES Module Shims, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.