Top Site Performance API alternatives in 2025

1. Page Speed Analyzer API
Page Speed Analyzer API is designed to provide an extensive analysis of your webpage's speed. This API is ideal for developers and website owners who want to understand their page performance and identify areas for improvement.
Key Features and Capabilities
{"redirects":{"id":"redirects","title":"Avoid multiple page redirects","description":"Redirects introduce additional delays before the page can be loaded.","score":1,"scoreDisplayMode":"numeric","details":{"type":"opportunity","headings":[],"overallSavingsMs":0,"items":[]},"numericValue":0,"numericUnit":"millisecond"}}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
View the integration guide for step-by-step instructions.
2. Site Metrics API
Site Metrics API provides real-time data on web traffic and user engagement, making it a powerful tool for marketers and website owners.
Key Features and Capabilities
{"alexa_rank": "1", "daily_pageviews_per_visitor": "17.65", "daily_time_on_site": "14:18", "bounce_rate_percentage": "24.0", "search_traffic_percentage": "0.4"}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
View the integration guide for step-by-step instructions.
3. Site Statistics API
Site Statistics API offers real-time insights into web traffic and user engagement, similar to the Site Metrics API but with a focus on statistical analysis.
Key Features and Capabilities
{"alexa_rank": "1", "daily_pageviews_per_visitor": "17.65", "daily_time_on_site": "14:18", "bounce_rate_percentage": "24.0"}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Read our technical guides for implementation tips.
4. Web Presence Insights API
Web Presence Insights API offers a comprehensive view of web traffic and user engagement, similar to the Site Metrics and Site Statistics APIs.
Key Features and Capabilities
{"alexa_rank": "1", "daily_pageviews_per_visitor": "17.65", "daily_time_on_site": "14:18", "bounce_rate_percentage": "24.0"}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Check out the API documentation to get started.
5. Web Loading Time API
Web Loading Time API is designed to measure webpage loading speed effortlessly. Users can input URLs and receive loading times in seconds, making it an essential tool for optimizing user experiences.
Key Features and Capabilities
0.11509299278259
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Check out the API documentation to get started.
6. Website Analytics API
Website Analytics API provides valuable web analytics insights, enabling data-driven decisions and competitive analysis.
Key Features and Capabilities
{"Version":1,"SiteName":"zoom.us","Description":"modernize workflows with zoom's trusted collaboration tools","TopCountryShares":[{"Country":840,"CountryCode":"US","Value":0.40024009238067315}]}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Try the API playground to experiment with requests.
7. Server Active API
Server Active API is a powerful tool that enables developers to check the status of servers in real-time.
Key Features and Capabilities
{"url":"https://www.zylalabs.com","status":"Up","statusCode":301,"statusCodeDescription":"Moved Permanently"}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Try the API playground to experiment with requests.
8. WebPage SEO Reporting API
WebPage SEO Reporting API investigates any webpage and generates a comprehensive SEO report, making it an essential tool for webmasters and SEO professionals.
Key Features and Capabilities
{"http":{"status":200,"contentSize":{"bytes":122698,"kb":119},"headers":{"content-type":"text/html; charset=UTF-8","server":"LiteSpeed"},"responseTime":"0.79 seconds"}}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Try the API playground to experiment with requests.
9. Site Metadata Extractor API
Site Metadata Extractor API is a simple and efficient tool for extracting website metadata such as headers, images, and OpenGraph tags.
Key Features and Capabilities
{"title":"YouTube","description":"Enjoy the videos and music you love","keywords":{"array":["video","sharing"],"value":"video, sharing"}}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
Visit the developer docs for complete API reference.
10. Traffic Metrics API
Traffic Metrics API offers traffic stats, keyword analysis, and identifies similar sites, empowering businesses with insights to optimize online strategies.
Key Features and Capabilities
{"alexa_rank": "208,554", "daily_pageviews_per_visitor": "6.1", "daily_time_on_site": "13:59", "bounce_rate_percentage": "29.2"}
Pricing Details
Pros and Cons
Ideal Use Cases
How It Differs from Other APIs
View the integration guide for step-by-step instructions.
Conclusion
Page Speed Analyzer API to the comprehensive traffic insights provided by the Site Metrics API and the Site Statistics API, developers have a plethora of options to choose from. Each API offers unique features and capabilities that can significantly enhance website performance and user engagement. Depending on your specific needs—whether it’s speed optimization, traffic analysis, or SEO reporting—there is an API that can help you achieve your goals. By leveraging these tools, developers can make informed decisions that lead to improved website performance and user satisfaction.