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透過可思科技的新知分享，帶給你最即時的網站架設與 SEO 的趨勢分析
07
2022/10
07
2022/10
Form Elements Must Have Labels

Fix any of the following: Form element does not have an implicit (wrapped) <label> Form element does not have an explicit <label> aria-label attribute does not exist or is empty aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty Element has no title attribute Element has no placeholder attribute Element's default semantics were not overridden with role="none" or role="presentation"

SEO專家 Vince Wu
Form Elements Must Have Labels
07
2022/10
07
2022/10
JavaScript files are blocking page rendering.

By default, references to external JavaScript files will block the page from rendering while they are fetched and executed. Often, these files can be loaded in a different manner, freeing up the page to visually render sooner.

SEO專家 Vince Wu
JavaScript files are blocking page rendering.
07
2022/10
07
2022/10
Images Must Have Alternate Text

SEO專家 Vince Wu
Images Must Have Alternate Text
07
2022/10
07
2022/10
IDs Of Active Elements Must Be Unique

SEO專家 Vince Wu
IDs Of Active Elements Must Be Unique
07
2022/10
07
2022/10
Elements Must Have Sufficient Color Contrast

SEO專家 Vince Wu
Elements Must Have Sufficient Color Contrast
07
2022/10
07
2022/10
The main thread was blocked

When files block the main thread, users are unable to interact with the page content. Typically, parsing and executing large JavaScript files, as well as running long JavaScript tasks can block the main thread and should be avoided. These files had high thread blocking times:

SEO專家 Vince Wu
The main thread was blocked
07
2022/10
07
2022/10
【Google-pagespeed】運用有效的快取政策提供靜態資產

延長快取生命週期可以加快使用者再次造訪網頁的速度。

SEO專家 Vince Wu
【Google-pagespeed】運用有效的快取政策提供靜態資產
12
2022/10
12
2022/10
【Google-pagespeed】如何避免 DOM 過大

大型 DOM 會增加記憶體用量、延長樣式運算的時間，並產生費工的版面配置重排。

SEO專家 Vince Wu
【Google-pagespeed】如何避免 DOM 過大
07
2022/10
07
2022/10
【Google-pagespeed】如何將主要執行緒的工作降到最低

建議你縮短剖析、編譯及執行 JavaScript 所耗費的時間。提供較小的 JavaScript 酬載可能會有幫助。

SEO專家 Vince Wu
【Google-pagespeed】如何將主要執行緒的工作降到最低
07
2022/10
07
2022/10
【Google-pagespeed】如何排除禁止轉譯的資源

網頁的資源過多，因此妨礙了首次顯示畫面的時間。建議你先載入重要的內嵌 JavaScript/CSS，並延後載入不重要的 JavaScript/樣式。

SEO專家 Vince Wu
【Google-pagespeed】如何排除禁止轉譯的資源