モバイルフレンドリーチェッカー

このツールの使い方

1. 1

   Paste the full URL of a public page (including https://) into the input field.

2. 2

   Submit the form — our server fetches the page and parses its HTML.

3. 3

   Read the verdict banner: green means responsive viewport plus zero issues, red means at least one problem was found.

4. 4

   Review the issues list and any fixed-width images shown below the banner, then fix the markup on your page.

モバイルフレンドリーチェッカーとは何ですか？

よくある活用例

• Quickly confirming a newly launched landing page includes a width=device-width viewport before sending paid traffic to it.

• Auditing a legacy site built with fixed-width tables and pixel-width images to find pages that overflow on phones.

• Spot-checking a client's marketing page for missing viewport tags during an SEO handoff.

• Catching hard-coded tiny inline font sizes that designers added for desktop but forgot to make responsive.

• Screening a batch of competitor or partner URLs for obvious mobile markup mistakes without opening each in a phone emulator.

• Teaching juniors what a responsive viewport tag looks like and why fixed-width images break small screens.

よくある質問