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Technology answer

Prototype

301,100

companies run it, 0.55% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 708,440 live hosts run it, of 191,809,695 hosts in the index, 0.37%. 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

301,100 at Sept 26; 300,160 twelve months earlier, +940, +0.3% 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
2021-01182,31831,804
2021-02182,32131,805
2021-03182,32431,805
2021-04182,32631,806
2021-05182,32831,806
2021-06182,33031,806
2021-07182,33231,807
2021-08182,40231,819
2021-09182,44431,826
2021-10182,48231,833
2021-11182,51931,839
2021-12182,56131,847
2022-01182,59631,853
2022-02182,63031,859
2022-03182,67031,866
2022-04182,70831,872
2022-05182,74631,879
2022-06182,78831,886
2022-07182,82831,893
2022-08182,86831,900
2022-09182,84831,897
2022-10182,85131,897
2022-11182,85731,898
2022-12182,86331,899
2023-01182,86331,899
2023-02182,87031,901
2023-03182,87831,902
2023-04185,50332,360
2023-05185,40532,343
2023-06185,30732,326
2023-07185,20432,308
2023-08185,10432,290
2023-09185,00432,273
2023-10184,89832,254
2023-11184,79732,237
2023-12184,69632,219
2024-01184,59532,202
2024-02184,49332,184
2024-03185,16732,301
2024-04185,40932,344
2024-05183,02831,928
2024-06183,38731,991
2024-07183,73732,052
2024-08184,12032,119
2024-09185,54232,367
2024-10191,08633,334
2024-11197,42534,440
2024-12203,44635,490
2025-01215,45337,585
2025-02226,67639,542
2025-03237,89941,500
2025-04248,46743,344
2025-05259,12345,203
2025-06270,10147,118
2025-07280,84948,993
2025-08291,65650,878
2025-09300,16052,361
2025-10307,60653,660
2025-11310,93154,240
2025-12313,46154,682
2026-01316,36355,188
2026-02314,23454,816
2026-03313,08354,616
2026-04311,88454,406
2026-05310,32554,135
2026-06308,90153,886
2026-07306,69653,501
2026-08304,28953,082
2026-09301,10052,525

Both denominators, and a third

Shares of the same 301,100each row a different wholelanding 12 Sept 2026

Denominator
Companies
Share
companies in the index
54,527,857
0.55%
companies running anything in JavaScript Libraries
40,118,208
0.75%
companies running anything in General JavaScript utilities
18,294,596
1.6%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, Prototype is rank 15 of 87 technologies in General JavaScript utilities.

Open as a segment

301,100 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-prototype

Open the segment

Catalogue record

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

Open-source JavaScript utility library for DOM manipulation and AJAX.

Prototype is an open-source JavaScript library that adds helpers for DOM scripting, events, and AJAX. It is used by developers to simplify client-side scripting in web applications.

Kindlibrary
VendorPrototype.js Project, prototypejs.org
Slugprototype
Deploymentself-hosted
Pricingfree
Open sourceyes
First discovered2019-06-03
Last discovered2026-09-10
Taxonomy releasetax-2026.10