Tools & Wizards About Us
files.portaudio.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

files.portaudio.com

PortAudio - an Open-Source Cross-Platform Audio API

Page Load Speed

241 ms in total

First Response

51 ms

Resources Loaded

123 ms

Page Rendered

67 ms

files.portaudio.com screenshot

About Website

Visit files.portaudio.com now to see the best up-to-date Files Port Audio content for United States and also check out these interesting facts you probably never knew about files.portaudio.com

PortAudio is a cross platform, open-source, audio I/O library. It provides a very simple API for recording and/or playing sound using a simple callback function.

Visit files.portaudio.com

Key Findings

We analyzed Files.portaudio.com page load time and found that the first response time was 51 ms and then it took 190 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

files.portaudio.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

files.portaudio.com

51 ms

files.portaudio.com

23 ms

style.css

2 ms

ga.js

21 ms

portaudio_logo.png

2 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 83% of them (5 requests) were addressed to the original Files.portaudio.com, 17% (1 request) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (51 ms) belongs to the original domain Files.portaudio.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 8.8 kB (27%)

Content Size

33.1 kB

After Optimization

24.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Files.portaudio.com main page is 33.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 17.2 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 3.0 kB

  • Original 4.6 kB
  • After minification 4.1 kB
  • After compression 1.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 493 B, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 3.0 kB or 65% of the original size.

Image Optimization

-31%

Potential reduce by 1.9 kB

  • Original 6.1 kB
  • After minification 4.2 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Files Port Audio needs image optimization as it can save up to 1.9 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-74%

Potential reduce by 3.9 kB

  • Original 5.2 kB
  • After minification 4.1 kB
  • After compression 1.4 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Files.portaudio.com needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 74% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Files Port Audio. According to our analytics all requests are already optimized.

Network Requests Diagram

files.portaudio.com

files.portaudio.com

51 ms

files.portaudio.com

files.portaudio.com

23 ms

style.css

style.css

2 ms

ga.js

ga.js

21 ms

portaudio_logo.png

portaudio_logo.png

2 ms

portaudio_logotext.png

portaudio_logotext.png

3 ms

Accessibility Review

files.portaudio.com accessibility score

79

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Form elements do not have associated labels

Best Practices

files.portaudio.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

files.portaudio.com SEO score

94

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Files.portaudio.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Files.portaudio.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

files.portaudio.com

Open Graph description is not detected on the main page of Files Port Audio. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: