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Technology answer

LazySizes

2,085,530

companies run it, 3.8% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 3,912,967 live hosts run it, of 191,809,695 hosts in the index, 2.0%. A host is a website, not a company.

Companies by month

Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026

2,085,518 at Sept 26; 2,329,182 twelve months earlier, -243,664, -10.5% on the fixed panel; the series starts January 2021 because the panel is anchored at 31 Dec 2020

The 69 numbers in this chart
MonthCompaniesObserved on the panel
2021-0100
2021-0200
2021-0300
2021-0400
2021-0500
2021-0600
2021-0700
2021-0800
2021-0900
2021-1000
2021-1100
2021-1200
2022-0100
2022-0200
2022-0300
2022-0400
2022-0500
2022-0600
2022-0700
2022-0800
2022-0900
2022-1000
2022-1100
2022-1200
2023-0100
2023-0200
2023-0300
2023-04113,20821,086
2023-05197,63936,811
2023-06282,06952,537
2023-07366,50068,263
2023-08450,93183,988
2023-09535,36299,714
2023-10619,793115,440
2023-11704,223131,165
2023-12788,654146,891
2024-01873,085162,617
2024-02957,565178,352
2024-031,087,199202,497
2024-041,211,374225,625
2024-051,222,341227,668
2024-061,262,592235,164
2024-071,302,779242,650
2024-081,344,996250,513
2024-091,416,085263,753
2024-101,508,787281,020
2024-111,606,391299,199
2024-121,700,611316,748
2025-011,808,630336,867
2025-021,907,201355,226
2025-032,005,722373,576
2025-042,064,437384,512
2025-052,120,523394,959
2025-062,182,391406,482
2025-072,240,854417,371
2025-082,299,550428,303
2025-092,329,182433,823
2025-102,329,724433,924
2025-112,308,652429,999
2025-122,282,679425,161
2026-012,260,509421,032
2026-022,237,132416,678
2026-032,227,084414,806
2026-042,214,423412,448
2026-052,193,140408,484
2026-062,178,115405,686
2026-072,151,400400,710
2026-082,122,714395,367
2026-092,085,518388,439

Both denominators, and a third

Shares of the same 2,085,530each row a different wholelanding 12 Sept 2026

Denominator
Companies
Share
companies in the index
54,527,857
3.8%
companies running anything in JavaScript Libraries
40,118,208
5.2%
companies running anything in General JavaScript utilities
18,294,596
11.4%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, LazySizes is rank 3 of 87 technologies in General JavaScript utilities.

Open as a segment

2,085,530 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-lazysizes

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

High-performance lazyloader library for images, iframes, and more.

LazySizes is an open-source JavaScript library that lazily loads images, iframes, and responsive variants with automatic init and feature plugins. It is used by web developers to optimize loading behavior.

Kindlibrary
VendorAlexander Farkas
Sluglazysizes
Deploymentself-hosted
Pricingfree
Open sourceyes
First discovered2023-10-05
Last discovered2026-09-10
Taxonomy releasetax-2026.10