Tools & Wizards About Us

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

antlr3.org

ANTLR Parser Generator

Page Load Speed

534 ms in total

First Response

143 ms

Resources Loaded

284 ms

Page Rendered

107 ms

About Website

Welcome to antlr3.org homepage info - get ready to check ANTLR 3 best content for United States right away, or after learning these important things about antlr3.org

StringTemplate: a Java template engine used for any application generating text such as language translators and dynamic web sites; available in C# and Python as well.

Visit antlr3.org

Key Findings

We analyzed Antlr3.org page load time and found that the first response time was 143 ms and then it took 391 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

antlr3.org performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

antlr3.org

143 ms

www.antlr3.org

52 ms

www.antlr3.org

37 ms

ga.js

21 ms

shim.gif

14 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 81% of them (13 requests) were addressed to the original Antlr3.org, 13% (2 requests) were made to Ssl.google-analytics.com and 6% (1 request) were made to Widgets.twimg.com. The less responsive or slowest element that took the longest time to load (143 ms) belongs to the original domain Antlr3.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.7 kB (10%)

Content Size

172.1 kB

After Optimization

155.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Antlr3.org main page is 172.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Images take 136.8 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 13.1 kB

  • Original 18.1 kB
  • After minification 16.4 kB
  • After compression 4.9 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 13.1 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 3.5 kB

  • Original 136.8 kB
  • After minification 133.3 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. ANTLR 3 images are well optimized though.

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.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ANTLR 3. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

antlr3.org accessibility score

46

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

antlr3.org best practices score

58

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

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

antlr3.org SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Antlr3.org 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 Antlr3.org main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of ANTLR 3. 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: