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learnes.net: Introduction · ElasticSearch 权威指南

译者现在的工作项目中需要用到elasticsearch,但是在网络中找了很多的相关的内容都很不完善,中文的介绍更是寥寥无几,所以我决定边研究边翻译一下官方的一个使用文档,在这里要感谢原作者们,如果各位在这里发现了错误之处,请大家在Issue中提出或者Fork这个项目。

Page load speed analysis

  • 81/100

    Good result
  • 8

    Successful tests
  • 0

    Failed test
  • First response

    328 ms

  • Resources loaded

    924 ms

  • Page rendered

    168 ms

  • Total page load time

    1.4 sec

Welcome to learnes.net homepage info - get ready to check Learnes best content for China right away, or after learning these important things about learnes.net

We analyzed Learnes.net page load time and found that the first response time was 328 ms and then it took 1.1 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 55.6 kB
    Images 1.9 kB
    Javascripts 245.6 kB
    CSS 181.4 kB

    In fact, the total size of Learnes.net main page is 484.5 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. 40% of websites need less resources to load. Javascripts take 245.6 kB which makes up the majority of the site volume.

    • Original 55.6 kB
    • After minification 37.8 kB
    • After compression 10.4 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. This page needs HTML code to be minified as it can gain 17.8 kB, which is 32% 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 45.2 kB or 81% of the original size.

    • Original 1.9 kB
    • After optimization 1.4 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. Obviously, Learnes needs image optimization as it can save up to 461 B or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 245.6 kB
    • After minification 245.6 kB
    • After compression 83.3 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 162.3 kB or 66% of the original size.

    • Original 181.4 kB
    • After minification 180.5 kB
    • After compression 28.1 kB

    CSS optimization

    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. Learnes.net needs all CSS files to be minified and compressed as it can save up to 153.3 kB or 85% of the original size.

Network requests diagram

  • learnes.net
  • details
  • style.css
  • socicon.css
  • 128.png
  • ZeroClipboard.min.js
  • app.js
  • sdk.js
  • widgets.js
  • xd_arbiter.php
  • button.0308b81ff1714e446f674b5b9793f2cd.js
  • channel.html
  • follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html
  • octicons.woff
  • nr-885.min.js

Our browser made a total of 17 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Learnes.net, 35% (6 requests) were made to Gitbook.com and 18% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (328 ms) belongs to the original domain Learnes.net.

Additional info on learnes.net

Requests

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learnes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

7

Javascripts

2

Images

2

CSS

4

AJAX

15

All

Possible request optimization

1

Javascripts

2

Images

2

CSS

4

AJAX

6

Optimized

9

All

Good result

Redirects

As for redirects, our browser was forwarded to https://www.gitbook.com/book/fuxiaopang/learnelasticsearch/details before it reached this domain.

IP address

This IP address is dedicated to Learnes.net. This is the best domain hosting practice .

Good result

IP Trace

DNS records

Type Host Target/ip TTL Other
NS

learnes.net

kami.ns.cloudflare.com 86400
NS

learnes.net

roan.ns.cloudflare.com 86400
SOA

learnes.net

3600 Mname: kami.ns.cloudflare.com
Rname: dns.cloudflare.com
Serial: 2034267542
Refresh: 10000
Retry: 2400
Expire: 604800
Minimum-ttl: 3600
TXT

learnes.net

300 Txt: ca3-d0a4f1305b0f4216acbbb5d52789697a

Language and encoding

Normal result

Language

ZH zh language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Learnes.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Learnes.net 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

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

Normal result

Visitor World Map

Country of origin for 96% of all visits is China. Unfortunately, we cannot track the location of Learnes.net server and thus cannot define if the distance between their user base and server can potentially affect the page load time

Good result

Good result

Social Sharing Optimization

Open Graph data is detected on the main page of Learnes. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

learnes.net

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