Website review getbootstrap.jp
Bootstrap · 世界で最も利用されているHTML、CSS、JSのライブラリです。
Generated on March 09 2026 10:08 AM
Old data? UPDATE !
The score is 57/100
SEO Content
Title
Bootstrap · 世界で最も利用されているHTML、CSS、JSのライブラリです。
Length : 44
Perfect, your title contains between 10 and 70 characters.
Description
パワフルで拡張性の高い、機能満載のフロントエンドツールキットです。Sassでビルドしてカスタマイズし、あらかじめ用意されたグリッドシステムとコンポーネントを利用し、強力なJavaScriptプラグインでプロジェクトに命を吹き込むことができます。
Length : 122
Great, your meta description contains between 70 and 160 characters.
Keywords
Very bad. We haven't found meta keywords on your page. Use this free online meta tags generator to create keywords.
Og Meta Properties
Good, your page take advantage of Og Properties.
| Property | Content |
|---|---|
| url | https://getbootstrap.jp/ |
| title | Bootstrap |
| description | パワフルで拡張性の高い、機能満載のフロントエンドツールキットです。Sassでビルドしてカスタマイズし、あらかじめ用意されたグリッドシステムとコンポーネントを利用し、強力なJavaScriptプラグインでプロジェクトに命を吹き込むことができます。 |
| type | website |
| image | https://getbootstrap.jp/docs/5.3/assets/brand/bootstrap-social.png |
| image:type | image/png |
| image:width | 2000 |
| image:height | 1000 |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 6 | 10 | 13 | 1 | 2 |
- [H1] Bootstrapで高速でレスポンシブなサイトを構築
- [H2] お好みの方法で始める
- [H2] Sassですべてをカスタマイズ
- [H2] CSS変数でリアルタイムに構築と拡張
- [H2] コンポーネントとユーティリティ API
- [H2] jQueryなしの強力なJavaScriptプラグイン
- [H2] Bootstrap Iconsでパーソナライズ
- [H3] パッケージマネージャー経由でインストール
- [H3] CDN経由で含める
- [H3] BootstrapのSassをすべて含める
- [H3] 必要なものだけを含める
- [H3] CSS変数の使用
- [H3] CSS変数によるカスタマイズ
- [H3] コンポーネントを素早くカスタマイズ
- [H3] ユーティリティの作成と拡張
- [H3] Data属性API
- [H3] 包括的なプラグインセット
- [H4] はじめに ガイドを読む
- [H4] Alert
- [H4] Button
- [H4] Carousel
- [H4] Collapse
- [H4] Dropdown
- [H4] Modal
- [H4] Offcanvas
- [H4] Popover
- [H4] Scrollspy
- [H4] Tab
- [H4] Toast
- [H4] Tooltip
- [H5] Bootstrap
- [H6] v5 releases
- [H6] 過去のリリース
Images
We found 5 images on this web page.
3 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 13%
This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Great, there are no Iframes detected on this page.
SEO Links
URL Rewrite
Good. Your links looks friendly!
Underscores in the URLs
Perfect! No underscores detected in your URLs.
In-page links
We found a total of 28 links including 1 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Skip to main content | Internal | Passing Juice |
| ドキュメント | Internal | Passing Juice |
| サンプル | Internal | Passing Juice |
| アイコン | Internal | Passing Juice |
| ブログ | External | Passing Juice |
| v5.0 | Internal | Passing Juice |
| v4.5 | Internal | Passing Juice |
| 全バージョンを見る | Internal | Passing Juice |
| ダウンロード | Internal | Passing Juice |
| Examplesリポジトリのデモ | External | Passing Juice |
| jsDelivr | External | Passing Juice |
| クイックスタート | Internal | Passing Juice |
| サンプルを閲覧 | Internal | Passing Juice |
| 個別に | Internal | Passing Juice |
| グローバルSassオプション | Internal | Passing Juice |
| BootstrapでSassを使用する方法 | Internal | Passing Juice |
| ユーティリティAPI | Internal | Passing Juice |
| 配置 | Internal | Passing Juice |
| サイズ | Internal | Passing Juice |
| 色 | Internal | Passing Juice |
| エフェクト | Internal | Passing Juice |
| JavaScriptをモジュールとして使用する方法 | Internal | Passing Juice |
| プログラムAPIの使用 | Internal | Passing Juice |
| Bootstrapチーム | External | Passing Juice |
| コントリビュータ | External | Passing Juice |
| MIT | External | Passing Juice |
| CC BY 3.0 | External | Passing Juice |
| サイトへのフィードバック | External | Passing Juice |
SEO Keywords
Keywords Cloud
import bootstrap type var item role dropdown class tab button
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| button | 22 |  |
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| bootstrap | 15 | |
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| import | 15 | |
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| class | 14 | |
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| var | 11 | |
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Usability
Url
Domain : getbootstrap.jp
Length : 15
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is ja.
Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Warning! At least one email address has been found in the plain text. Use free antispam protector to hide email from spammers.
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Excellent, your website doesn't use nested tables. |
|
Too bad, your website is using inline styles. |
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Great, your website has few CSS files. |
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Perfect, your website has few JavaScript files. |
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Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
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Meta Viewport Tag |
|
Flash content |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://getbootstrap.jp/sitemap-index.xml |
Robots.txt
https://getbootstrap.jp/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
We didn't detect an analytics tool installed on this website.
Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
PageSpeed Insights
Device
Categories
Free SEO Testing Tool
Free SEO Testing Tool is a free SEO tool which provides you content analysis of the website.