Sitespeed.io is an open source tool that helps to analyze and optimize website speed and performance.
Current Customer(s)
Market Share (Est.)
Ranking
The top three of Sitespeed’s competitors in the Performance And Load Testing category are Apache JMeter with 57.34%, LambdaTest with 4.47%, Blitz with 3.63% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Apache JMeter | 5247 | 57.34% | Sitespeed vs Apache JMeter |
| LambdaTest | 409 | 4.47% | Sitespeed vs LambdaTest |
| Blitz | 332 | 3.63% | Sitespeed vs Blitz |
| Torbit | 332 | 3.63% | Sitespeed vs Torbit |
| The Grinder | 325 | 3.55% | Sitespeed vs The Grinder |
| eggPlant Test Automation Suite | 258 | 2.82% | Sitespeed vs eggPlant Test Automation Suite |
| Tricentis Neoload | 237 | 2.59% | Sitespeed vs Tricentis Neoload |
| Telerik Test Studio | 221 | 2.42% | Sitespeed vs Telerik Test Studio |
| WebLOAD | 193 | 2.11% | Sitespeed vs WebLOAD |
| Load Impact | 154 | 1.68% | Sitespeed vs Load Impact |
| P3 (Plugin Performance Profiler) | 138 | 1.51% | Sitespeed vs P3 (Plugin Performance Profiler) |
| mod_pagespeed | 118 | 1.29% | Sitespeed vs mod_pagespeed |
| Catchpoint | 108 | 1.18% | Sitespeed vs Catchpoint |
| SmartBear AlertSite | 99 | 1.08% | Sitespeed vs SmartBear AlertSite |
| GTmetrix | 87 | 0.95% | Sitespeed vs GTmetrix |
| Loader | 73 | 0.80% | Sitespeed vs Loader |
| OctoPerf | 70 | 0.77% | Sitespeed vs OctoPerf |
| Siege | 69 | 0.75% | Sitespeed vs Siege |
| Artillery | 61 | 0.67% | Sitespeed vs Artillery |
| BMC AMI DevX Performance Test | 56 | 0.61% | Sitespeed vs BMC AMI DevX Performance Test |
Popular Comparisons
The top three of Sitespeed’s competitors in the Performance And Load Testing category are Apache JMeter with 57.34%, LambdaTest with 4.47%, Blitz with 3.63% market share.
Sitespeed vs Apache JMeter
Sitespeed vs LambdaTest
Sitespeed vs Blitz
Sitespeed vs Torbit
Sitespeed vs The Grinder
Sitespeed vs eggPlant Test Automation Suite
Sitespeed vs Tricentis Neoload
Sitespeed vs Telerik Test Studio
Around the world in 2026, over 69 companies have started using Sitespeed as Performance And Load Testing tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| PayPal | 10,000+ | San Jose | California | United States | |
| Siemens | 10,000+ | Munich | Bavaria | Germany | |
| Ahold Delhaize | 10,000+ | Zaandam | North Holland | Netherlands | |
| Verizon | 10,000+ | New York City | New York | United States | |
| Pearson | 10,000+ | London | England | United Kingdom | |
| The World Bank | 10,000+ | Washington, D.C. | Washington, D.C. | United States | |
| Walmart | 10,000+ | Bentonville | Arkansas | United States | |
| Accenture | 10,000+ | Dublin | Leinster | Ireland | |
| 10,000+ | Sunnyvale | California | United States | ||
| Capgemini | 10,000+ | Paris | Ile-de-France | France |
The top three products and services offering customers that use Sitespeed for Performance And Load Testing are Cloud Services (8), Digital Transformation (5), Technology (4).
Customers
The majority of Sitespeed's customers for the performance-and-load-testing category fall in the company size of 10,000+ employees (29 companies), 100 - 249 employees (9 companies), 20 - 49 employees (7 companies).
Employee Size
The top three geographies of Sitespeed for performance-and-load-testing are the United States with 26(42.62%), United Kingdom with 11(18.03%), France with 7(11.48%) customers respectively.
Customers
Find answers to the most often asked questions by users.
Who are the top Sitespeed competitors?
Sitespeed’s Top competitors in the performance-and-load-testing category are Apache JMeter, LambdaTest, Blitz. You can view a full list of Sitespeed competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Sitespeed and 40,000 other technologies on the internet. You can also compare Sitespeed and its feature with top competitors here : Sitespeed vs Apache JMeter Sitespeed vs LambdaTest Sitespeed vs Blitz.
What is Sitespeed customer distribution based on company size?
What is Sitespeed market share in the performance-and-load-testing?
What are the top countries that use Sitespeed?
What are the top industries that use Sitespeed?
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