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 Generated on March 29 2016 15:34 PM

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SEO Content

Title JSer.info

Length : 9

Ideally, your title should contain between 10 and 70 characters (spaces included). Try to write a catchy title to get attention.
Description JavaScriptの最新情報を紹介する週刊ブログ

Length : 25

Ideally, your meta description should contain between 70 and 160 characters (spaces included).
Og Meta Properties Good, your page takes advantage of Og Properties. You can click the expand button below-right to see what it contains.

Property Content
title JSer.info
type website
url http://jser.info/
image http://jser.info/media/logo.png
description JavaScriptの最新情報を紹介する週刊ブログ
site_name JSer.info
H1 H2 H3 H4 H5 H6
14 2 0 0 0 0
  • [H1]
  • [H1] 投稿一覧
  • [H1] 2016-03-29のJS: Safari 9.1、Backbone.jsの近況、Web Performance API
  • [H1] 2016-03-23のJS: Chrome 50β、Reactのパフォーマンス調査改善、Node.js compat table
  • [H1] 2016-03-17のJS: React.js v15.0 RC、WebAssembly、最近のJavaScriptツール/ライブラリ
  • [H1] 2016-03-08のJS: React v15.0 RC、Reactパフォーマンス調査、DDD
  • [H1] 2016-03-03のJS: Ember.js LTS、ECMA i18n API 3rd Edition RC、jQuery 3での変更点
  • [H1] 2016-02-24のJS: TypeScript 1.8、Reactのバージョニング、Draft.js
  • [H1] 2016-02-15のJS: Grunt 1.0.0 RC1、ESLint 2.0.0、Underscore/Lodash
  • [H1] 2016-02-08のJS: Babel 6.5.0、Angular 1.5、letとconst
  • [H1] 2016-02-02のJS: Firefox 44.0、ES2016の追加機能、webpack2β
  • [H1] ECMAScript 2016 features & changes
  • [H1] ページ
  • [H1] 最近の投稿
  • [H2] JavaScriptの最新情報を紹介する週刊ブログ
  • [H2] azu
Images We found 8 images on this web page.

Awesome! Most or all of your images have alt attributes.
Text/HTML Ratio Ratio : 14%

This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content. Search engines these days are smart enough to figure out if a page is on-topic and interesting enough to get higher rankings in their search results.

Try to write a good article around 1500 words and check for grammar and spelling errors. As they say in the SEO world: "Content is King."
Flash Perfect, no Flash content has been detected on this page.
Iframe Great, there are no IFrames detected on this page.

URL Rewrite Good!
Underscores in the URLs We have detected underscores in your URLs. You should rather use hyphens to optimize your SEO.
In-page links We found a total of 18 links including 4 link(s) to files

SEO Keywords

Keywords Cloud api jserinfo v150 emberjs typescript 3での変更点 2016-02-24のjs i18n ltsecma rcjquery
Keywords Consistency
Keyword Content Title Description Headings
jserinfo 2
v150 2
api 2
3での変更点 1
2016-02-24のjs 1


Url Domain : jser.info
Length : 9
Favicon Great, your website has a favicon.
Printability We could not find a Print-Friendly CSS.
Language You have not specified a language.


Doctype HTML 5
Encoding Perfect. Your declared charset is UTF-8.
W3C Validity Errors : 1
Warnings : 13
Email Privacy Great! No email address has been found as plain text!
Deprecated HTML Great! We haven't found any deprecated HTML tags.
Speed Tips
Excellent, your website doesn't use nested tables.
Your website is using inline styles.
Great, your website has a few CSS files.
Perfect, your website has a few JavaScript files.
Perfect, your website takes advantage of gzip.


Mobile Optimization
Apple Icon
Meta Viewport Tag
Flash content


XML Sitemap Great, your website has an XML sitemap.

Robots.txt Missing

Your website doesn't have a robots.txt file - this can be problematic.

A robots.txt file allows you to restrict the access of search engine robots that crawl the web and it can prevent these robots from accessing specific directories and pages. It also specifies where the XML sitemap file is located.

For more information on how to do this: www.robotstxt.org
Analytics Great, your website has an analytics tool.

   Google Analytics

PageSpeed Insights