(奇寶) SEO圖片優化重點

圖片真的對SEO沒有幫助嗎?相信這是許多人會有的疑惑。根據奇寶工程師的經驗,文字在SEO中的影響力仍然大於圖片,但我們也不可忽視圖片搜尋的趨勢。奇寶工程師常遇到客戶考量排版、畫面的美觀,所以在網站中大量使用圖片提供訊息給使用者,卻忘了搜尋引擎爬蟲只看得懂「文字」(程式碼),對SEO來說,是非常可惜的一件事!

JavaScript前端跨網域存取解決方案

1.前言

XMLHttpRequest cannot load ... Origin ... is not allowed by Access-Control-Allow-Origin

 

這個問題常發生在前端程式嘗試以 AJAX (XMLHttpRequest) 方式存取跨網域資源時,因為 Security 的考量,造成 request 發送失敗的情況。

 

更快更安全的h2 (http 2)

Hypertext Transfer Protocol (HTTP) has been around since 1991, and we haven’t seen a major update since 1999, when HTTP/1.1 was released. During this time a lot of performance best practices have been passed around the web to try and circumvent some of the shortcomings in HTTP/1.1.

Sites such asPingdomandGTmetrixare the de facto when it comes to measuring a site’s performance and for the most part they’re excellent tools. However, some of their recommendations aren’t relevant in the era of HTTP/2.