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Page load speed analysis

  • 75/100

    Good result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    178 ms

  • Resources loaded

    920 ms

  • Page rendered

    99 ms

  • Total page load time

    1.2 sec

Click here to check amazing Try Dart Lang content for United States. Otherwise, check out these important facts you probably never knew about try.dartlang.org

We analyzed Try.dartlang.org page load time and found that the first response time was 178 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Page optimization

  • HTML 46.6 kB
    Images 27.5 kB
    Javascripts 26.3 kB
    CSS 0 B

    In fact, the total size of Try.dartlang.org main page is 100.3 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. HTML takes 46.6 kB which makes up the majority of the site volume.

    • Original 46.6 kB
    • After minification 45.8 kB
    • After compression 11.3 kB

    HTML optimization

    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 35.2 kB or 76% of the original size.

    • Original 27.5 kB

    Image optimization

    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. Try Dart Lang images are well optimized though.

    • Original 26.3 kB
    • After minification 26.3 kB
    • After compression 10.9 kB

    JavaScript optimization

    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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 15.4 kB or 58% of the original size.

Network requests diagram

  • dartpad.dartlang.org
  • css
  • css
  • codemirror.js
  • main.dart.js
  • analytics.js
  • frame.html
  • keyboard.svg
  • zN7GBFwfMP4uA6AR0HCoLQ.ttf
  • collect
  • collect
  • embed-dart.png
  • collect
  • BjAYBlHtW3CJxDcjzrnZCJ0EAVxt0G0biEntp43Qt6E.ttf
  • AIed271kqQlcIRSOnQH0yZ_TkvowlIOtbR7ePgFOpF4.ttf

Our browser made a total of 15 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Try.dartlang.org, 20% (3 requests) were made to Google-analytics.com and 20% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (304 ms) relates to the external source Dartpad.dartlang.org.

Additional info on try.dartlang.org

Requests

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Try Dart Lang. According to our analytics all requests are already optimized.

3

Javascripts

4

Images

2

CSS

1

AJAX

10

All

Possible request optimization

3

Javascripts

4

Images

2

CSS

1

AJAX

0

Optimized

10

All

Good result

IP address

Try.dartlang.org uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A

ghs.googlehosted.com

216.58.218.147 299
CNAME

try.dartlang.org

ghs.googlehosted.com 21599
AAAA

ghs.googlehosted.com

299 Ipv6: 2607:f8b0:4000:801::2013

Language and encoding

Good result

Language

N/A  language flag

Detected

N/A  language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Try.dartlang.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Try.dartlang.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

HTTPS certificate

SSL Certificate

Try.dartlang.org has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 18.6% of all visits is United States. It’s good for Try.dartlang.org that their server is also located in United States, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Try Dart Lang. 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:

try.dartlang.org

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