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What is PerfDelta?

PerfDelta serves as a specialized online platform aimed at assessing and monitoring website speed, specifically tailored for SEO experts, digital agencies, and internal web development teams. The free testing feature permits users to analyze up to three web pages on both mobile and desktop devices, utilizing real-user Core Web Vitals data derived from the Chrome UX Report in combination with metrics from Lighthouse labs. Its in-depth reports facilitate direct comparisons between a user’s website and up to two competitors, as well as benchmarks against previously analyzed sites, while also illustrating page weight distributions, timelines for requests, identifying the technologies employed, and offering prioritized recommendations that highlight estimated savings along with the relevant affected files. Those who choose to subscribe to paid plans gain access to extra features including scheduled monitoring, performance budgets, email alerts, historical reporting, and PDF exports, with Agency and Scale plans also providing CSV export capabilities, public dashboards, and a REST API for more advanced functionalities. Additionally, the platform's MCP access empowers compatible AI agents to effortlessly request tests and retrieve results. Clients can also share reports for performance evaluations and to aid in continuous website improvements, significantly enhancing the overall value of the service provided. This comprehensive offering makes PerfDelta an indispensable tool for those committed to optimizing their web performance.

What is M-Lab Speed Test?

M-Lab's Speed Test provides detailed diagnostics of your broadband connection's performance through quick evaluations. Measurement Lab (M-Lab) features the largest collection of open Internet performance data globally. This initiative is a partnership among research institutions, industry experts, and public interest organizations, dedicated to promoting transparency and verifiable assessments of network performance on an international level. The tools offered are openly licensed, allowing third parties to develop their own client-side measurement applications and validate the original source. The information collected is available to the public at no cost, which encourages researchers and others to add to a communal database of network measurement findings. M-Lab's distributed infrastructure, along with a vast network of users, provides a platform that is both open and accountable for evaluating network performance on a global scale. This initiative plays a crucial role for public entities, academic researchers, regulators, and businesses across the world, enabling them to gain valuable insights into the overall health and efficiency of the Internet. Moreover, the collaborative efforts of M-Lab enhance the understanding of broadband performance and drive advancements in measurement methodologies. By fostering a shared approach, M-Lab not only enriches the data available but also encourages a culture of innovation in how we assess and interpret network performance.

Media

Media

Integrations Supported

ChatGPT
Claude
Cursor
Google PageSpeed Insights
Lighthouse
Model Context Protocol (MCP)
Zapier

Integrations Supported

API Availability

Has API

API Availability

Pricing Information

€23/month
A free plan is available. The Solo plan costs €23/month net with monthly billing, or €230/year net with annual billing. Higher plans add scheduled monitoring, alerts, report history, exports, and API access.
Free Version

Pricing Information

Pricing not provided
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

PerfDelta

Date Founded

2026

Company Location

Berlin, Germany

Company Website

perfdelta.com

Company Facts

Organization Name

M-Lab

Company Website

speed.measurementlab.net

Categories and Features

Speed Test

Not specified

Website Monitoring

Event-Based Notifications
Performance Metrics

Categories and Features

Speed Test

Not specified

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