google-pagespeed

Find score inside json result of PageSpeed Insight api v5

久未见 提交于 2019-12-04 11:26:27
问题 I'm trying the Google v5 API page speed insight but i don't find the SCORE inside the json result. This is the api https://www.googleapis.com/pagespeedonline/v5/runPagespeed In the v4 there is a ruleGroups.SPEED.score that contains an integer with the score. Where i can find the score inside the v5? Thanks 回答1: I think it is the following: json.lighthouseResult.categories.performance.score Returns a decimal with 1 as maximum. So you have to multiply with 100 to get the percentage. Works for

PageSpeed review and optimization

痴心易碎 提交于 2019-12-04 01:26:13
I analysed my page speed using google pagespeed insight and got below suggestion. Can any one help me how I can implement it. Leverage browser caching Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network. Leverage browser caching for the following cacheable resources: http://www.googletagmanager.com/gtm.js?id=GTM-TVSKP6 (16.2 minutes) You can't (you do not control the Google servers, so you cannot set http headers on their behalf). Moreover, you do not want to.

Why is Google PageSpeed Insights telling me to minify javascript & CSS (using Rails 3.2 with JS & CSS compression) and how to fix?

≡放荡痞女 提交于 2019-12-03 06:15:57
I know it's not a lot I could save in KB, but to achieve a better score in Google PageSpeed Insights, and thus probably better SEO ranking, how can I fix this? From https://developers.google.com/speed/pagespeed/insights/?hl=en&url=www.tradebench.com : Minify JavaScript for the following resources to reduce their size by 2.8KiB (2% reduction). Minifying http://d2bfamm4k6zojq.cloudfront.net/…tion-ea806932c941fb875b7512a557ebead3.js could save 2.8KiB (2% reduction) after compression. It tells me the same thing for my CSS file. From my production.rb file: config.assets.compress = true config

How can I compress images using java?

陌路散爱 提交于 2019-11-29 10:19:19
From pagespeed I am getting only image link and possible optimizations in bytes & percentage like, Compressing and resizing https://example.com/…ts/xyz.jpg?036861 could save 212KiB (51% reduction). Compressing https://example.com/…xyz.png?303584508 could save 4.4KiB (21% reduction). For an example I have image of size 300kb and for this image pagespeed is displaying 100kb & 30% of reduction. This is only for one image but I am sure I will have lots of images for compression. so how can I compress image by passing bytes or percentage as a parameter or using anyother calculations in java (by

What is “above-the-fold content” in Google Pagespeed?

喜欢而已 提交于 2019-11-28 03:05:01
Until recently, my site (www.heatexchangers.ca) scored 98% on Google Page Speed. There were a couple of things I could do nothing about such as the query string from web fonts. I was very happy with this as this represented all that I could do. Recently Google added something else that affects the page speed score and I now only get 89% on Page Speed and get this suggestion: Eliminate external render-blocking JavaScript and CSS in above-the-fold content. The suggestion to fix this seems to involve trolling through all my .css and .js files and separating some parts of them and adding them

How can I compress images using java?

感情迁移 提交于 2019-11-28 00:26:47
问题 From pagespeed I am getting only image link and possible optimizations in bytes & percentage like, Compressing and resizing https://example.com/…ts/xyz.jpg?036861 could save 212KiB (51% reduction). Compressing https://example.com/…xyz.png?303584508 could save 4.4KiB (21% reduction). For an example I have image of size 300kb and for this image pagespeed is displaying 100kb & 30% of reduction. This is only for one image but I am sure I will have lots of images for compression. so how can I

How does Google's Page Speed lossless image compression work?

陌路散爱 提交于 2019-11-27 05:49:14
When you run Google's PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image. For example: Losslessly compressing http://farm3.static.flickr.com/2667/4096993475_80359a672b_s.jpg could save 33.5KiB (85% reduction). Losslessly compressing http://farm2.static.flickr.com/1149/5137875594_28d0e287fb_s.jpg could save 18.5KiB (77% reduction). Losslessly compressing http://cdn.uservoice.com/images/widgets/en/feedback_tab_white.png could save 262B (11% reduction). Losslessly compressing http:/

What is “above-the-fold content” in Google Pagespeed?

浪子不回头ぞ 提交于 2019-11-27 05:03:11
问题 Until recently, my site (www.heatexchangers.ca) scored 98% on Google Page Speed. There were a couple of things I could do nothing about such as the query string from web fonts. I was very happy with this as this represented all that I could do. Recently Google added something else that affects the page speed score and I now only get 89% on Page Speed and get this suggestion: Eliminate external render-blocking JavaScript and CSS in above-the-fold content. The suggestion to fix this seems to

How does Google's Page Speed lossless image compression work?

醉酒当歌 提交于 2019-11-27 03:59:00
问题 When you run Google's PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image. For example: Losslessly compressing http://farm3.static.flickr.com/2667/4096993475_80359a672b_s.jpg could save 33.5KiB (85% reduction). Losslessly compressing http://farm2.static.flickr.com/1149/5137875594_28d0e287fb_s.jpg could save 18.5KiB (77% reduction). Losslessly compressing http://cdn.uservoice.com

CSS delivery optimization: How to defer css loading?

折月煮酒 提交于 2019-11-26 07:57:35
问题 I am trying to optimize the CSS delivery following the google documentation for developers https://developers.google.com/speed/docs/insights/OptimizeCSSDelivery#example As you can see in the example of inlining a small CSS file the critical CSS in inlined in the head and the original small.css is loaded after onload of the page . <html> <head> <style> .blue{color:blue;} </style> </head> <body> <div class=\"blue\"> Hello, world! </div> </body> </html> <noscript><link rel=\"stylesheet\" href=\