Title: Specify Missing Image Dimensions
Author: yasir129
Published: <strong>2021年3月18日</strong>
Last modified: 2022年5月29日

---

プラグインを検索

このプラグインは **WordPress の最新3回のメジャーリリースに対してテストされていま
せん**。もうメンテナンスやサポートがされていないかもしれず、最新バージョンの WordPress
で使用した場合は互換性の問題が発生する可能性があります。

![](https://s.w.org/plugins/geopattern-icon/specify-missing-image-dimensions.svg)

# Specify Missing Image Dimensions

 作者: [yasir129](https://profiles.wordpress.org/yasir129/)

[ダウンロード](https://downloads.wordpress.org/plugin/specify-missing-image-dimensions.zip)

 * [詳細](https://ja.wordpress.org/plugins/specify-missing-image-dimensions/#description)
 * [レビュー](https://ja.wordpress.org/plugins/specify-missing-image-dimensions/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/specify-missing-image-dimensions/#installation)
 * [開発](https://ja.wordpress.org/plugins/specify-missing-image-dimensions/#developers)

 [サポート](https://wordpress.org/support/plugin/specify-missing-image-dimensions/)

## 説明

**Specify Missing Image Dimensions** is a WordPress plugin that helps to add missing
width and height attributes to images. This plugin scans the entire HTML page and
specify missing width and height to tags.

If you are seeing error like “Image elements do not have explicit width and height”
on [Google PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/)
then this plugin will help you to remove that error by adding missing width and 
height attributes to the required images.

By adding width and height to the images, Cumulative Layout Shift (CLS) also improves
as there will be no more unwanted jumps while HTML page rendering.

### How this Plugin Works

 1. **Specify Missing Image Dimensions** plugin scans the entire HTML page and finds
    images with missing width and height attributes.
 2. After finding the images, this plugin gets the image dimensions using getimagesize()
    function.
 3. After getting the required dimensions, plugin adds the width and height attributes
    to the images.

### Features

 * Exclude images by image extension
 * Exclude images by image Name
 * Exclude images by class
 * Exclude images by ID

## スクリーンショット

 * [[
 * Access “Specify Missing Image Dimensions” Settings Page
 * [[
 * “Specify Missing Image Dimensions” Settings Page

## インストール

Search for “Specify Missing Image Dimensions” under “Plugins”  “Add New” in your
WordPress dashboard to install the plugin.

Or install it manually:

 1. Download the plugin’s [zip file](https://wordpress.org/plugins/specify-missing-image-dimensions/).
 2. Go to _Plugins_  _Add New_ in your WordPress admin.
 3. Click on the _Upload Plugin_ button.
 4. Select the file you downloaded.
 5. Click _Install Plugin_.
 6. Activate.

## FAQ

### Why this plugin is important?

Once this plugin assigns missing width and height attributes to required images,
there will be no more unwanted jumps while page rendering. Adding missing width 
and height attributes also help to improve scores on website speed tools such as
[Google’s PageSpeed](https://developers.google.com/speed/pagespeed/insights/) and
[GTmetrix](https://gtmetrix.com)

### Does this plugin also works for SVG?

Yes, if the SVG are added using tag, then this plugin will work fine for them.
 
But if you see some issues with SVG or any other type of images, you can exclude
SVG using plugin’s option.

## 評価

![](https://secure.gravatar.com/avatar/3b5ce53801a10d1e95f58e94dcb773796c837283431c20e0668962e2214a5bd2?
s=60&d=retro&r=g)

### 󠀁[This plugin is great](https://wordpress.org/support/topic/this-plugin-is-great-70/)󠁿

 [nouha88](https://profiles.wordpress.org/nouha88/) 2023年1月5日

It doesn’t need much configuration, yet it works like magic. Thank you for this 
plugin. The CLS of the website is much better now.

![](https://secure.gravatar.com/avatar/961ef82863052736a95c9f8a288d3a6507c65be61335d659d73ec83d6a1ab29f?
s=60&d=retro&r=g)

### 󠀁[Image Elements do Not Have Explicit Width and Height [RESOLVED]](https://wordpress.org/support/topic/image-elements-do-not-have-explicit-width-and-height-resolved/)󠁿

 [highdeckstudio](https://profiles.wordpress.org/highdeckstudio/) 2022年7月20日

Excellent! Ideal plugin for users of page builders like Elementor. Thank you so 
much!💚

![](https://secure.gravatar.com/avatar/045cd335193f0c9c3f11637f3b0c279db77265ede7cac474a92f5d10c3d93f3c?
s=60&d=retro&r=g)

### 󠀁[Great!](https://wordpress.org/support/topic/great-14161/)󠁿

 [Hony Tsoi](https://profiles.wordpress.org/honytsoi/) 2022年1月18日

Improved by CLS from 0.26 to 0.0004 with no effort! Using with Divi theme which 
is very heavy, so any improvement is good.

![](https://secure.gravatar.com/avatar/702016e7c55e65542ce4655ddd58b25218685d8ed4ca2185a2e8fb295dd24454?
s=60&d=retro&r=g)

### 󠀁[Great plugin, work well](https://wordpress.org/support/topic/great-plugin-work-well-2/)󠁿

 [cropsong](https://profiles.wordpress.org/cropsong/) 2021年10月10日

After install this plugin, my website speed was improved a lot, thank you! Just 
please keep this plugin updated as quick as you can.

![](https://secure.gravatar.com/avatar/3397165e70e93cf935eae7f8f3df8f071b98268c4033f45bf45f0047feb032c8?
s=60&d=retro&r=g)

### 󠀁[Garbage – makes site extremely slow and WordPress admin unusable](https://wordpress.org/support/topic/garbage-makes-site-extremely-slow-and-wordpress-admin-unusable/)󠁿

 [jasonbear](https://profiles.wordpress.org/jasonbear/) 2021年8月3日

Junk. Fix your product! I wasted 2 days trying to figure out why my entire site 
was absurdly slow and why my Wordpress admin kept getting “504 Gateway Timeout” 
errors that made it entirely unusable! I installed this thing to speed up my site,
and you made it 100 times slower . . . and unusable! Great job! I couldn’t even 
load the plugins page to deactivate plugins one-by-one to identify the culprit. 
I had to rename each plugin folder via FTP in order to disable each plugin. As soon
as I disable “Specify Missing Image Dimensions,” the problem goes away! REMOVE THIS
HARMFUL PLUGIN!

![](https://secure.gravatar.com/avatar/b4737b75264d64d6e31d125139a23aa2cb1ae1fbb37832e68d307c5bfa75b337?
s=60&d=retro&r=g)

### 󠀁[✅ Core Web Vitals – Simple Easy Fix 🙂](https://wordpress.org/support/topic/%e2%9c%85-core-web-vitals-simple-easy-fix/)󠁿

 [sunnyjimm](https://profiles.wordpress.org/sunnyjimm/) 2021年7月5日

Thank you for your useful and easy to use plugin. Solved the Core Web Vitals issue
like magic – just install and BOOM! Job done. High5!

 [ 10件のレビューをすべて表示 ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/)

## 貢献者と開発者

Specify Missing Image Dimensions はオープンソースソフトウェアです。以下の人々がこの
プラグインに貢献しています。

貢献者

 *   [ yasir129 ](https://profiles.wordpress.org/yasir129/)

[“Specify Missing Image Dimensions” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/specify-missing-image-dimensions)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/specify-missing-image-dimensions/)
するか、[SVN リポジトリ](https://plugins.svn.wordpress.org/specify-missing-image-dimensions/)
をチェックするか、[開発ログ](https://plugins.trac.wordpress.org/log/specify-missing-image-dimensions/)
を [RSS](https://plugins.trac.wordpress.org/log/specify-missing-image-dimensions/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

#### 1.0.2

 * Handled running of plugin’s functionality at backend (wp-admin)

#### 1.0.1

 * Handled Error causing by SVG images

#### 1.0.0

 * Initial release

## メタ

 *  バージョン **1.0.2**
 *  最終更新日 **4年前**
 *  有効インストール数 **1,000+**
 *  WordPress バージョン ** 5.0またはそれ以降 **
 *  検証済み最新バージョン: **6.0.12**
 *  PHP バージョン ** 5.3またはそれ以降 **
 *  言語
 * [English (US)](https://wordpress.org/plugins/specify-missing-image-dimensions/)
 * タグ
 * [image optimization](https://ja.wordpress.org/plugins/tags/image-optimization/)
   [images](https://ja.wordpress.org/plugins/tags/images/)[Optimize](https://ja.wordpress.org/plugins/tags/optimize/)
   [pagespeed](https://ja.wordpress.org/plugins/tags/pagespeed/)[speed](https://ja.wordpress.org/plugins/tags/speed/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/specify-missing-image-dimensions/advanced/)

## 評価

 5つ星中4.5つ星

 *  [  9 5-星レビュー     ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/?filter=5)
 *  [  0 4-星レビュー     ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/?filter=4)
 *  [  1 3-星レビュー     ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/?filter=2)
 *  [  1 1-星レビュー     ](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/#new-post)

[すべてのレビューを見る](https://wordpress.org/support/plugin/specify-missing-image-dimensions/reviews/)

## 貢献者

 *   [ yasir129 ](https://profiles.wordpress.org/yasir129/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/specify-missing-image-dimensions/)