page-speed | PageSpeed Insights SDK | Performance Testing library

I've configured ngx_pagespeed as I usually do and it has worked everywhere else.

But on this particular AWS instance it does not seem to be optimizing anything.

I do get the expected response headers from nginx x-page-speed: 1.13.35.2-0, and I see pagespeed beacon watching elements on pages.

BUT - in the end nothing gets optimized. No CSS is combined or rewritten, no images get converted to webp or lazyloaded - NOTHING.

I've warmed up pages quite a bit, visiting a few dozen times from different browsers and devices. Usually at this point I'd see optimizations happening.

Can someone suggest what could be wrong? Could it be a permissions issue?

Just to be sure I ran sudo chown -R www-data:www-data /var/ngx_pagespeed_cache/ , but nothing changed.

Here's my nginx.conf for reference:

I have recently connected to GA to track usage and my site view would less than 1000 views per day. I would like to see my site "Avg. Page Load Time" but it is always showing zero. What needs to done to get Avg. Page Load Time ?

I have referred How to set up page speed logging for google analytics in analytics.js but i don't have permission to Modify the GA code in the site. Is there any other option to get Avg. Page Load Time ?

Question:

Please see below that got Avg. Page Load Time for first landing page but remaining pages still 0 and my question is When will get Avg. Page Load Time for remaining pages(Please give me example to any one page) ?

Anyone can point me why google-page-speed api provides lower performance score with encoded url parameter?

I called api for 100 times with encoded url parameter versus unencoded url parameter, and the result as follow:

Encode URL parameter:

• TP90 performance score: 74

• pagespeed request: https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https%3A%2F%2Fm.ctrip.com%2Fwebapp%2Fflight%2Fschedule%2Fdetail.html%3FhideAddTrip%3Dtrue%26isHideNavBar%3DYES%26navBarStyle%3Dgray%26flightNo%3DNH7018%26queryDate%3D2019-11-10%26dcode%3DNRT%26acode%3DLAX&strategy=mobile&key=AIzaSyA-AeDYHQr1ufyzqpq2sbb2tWqPoS-tjTo

Normal URL parameter:

• TP90 performance score: 90

• pagespeed request: https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https://m.ctrip.com/webapp/flight/schedule/detail.html?hideAddTrip=true&isHideNavBar=YES&navBarStyle=gray&flightNo=NH7018&queryDate=2019-11-10&dcode=NRT&acode=LAX&strategy=mobile&key=AIzaSyA-AeDYHQr1ufyzqpq2sbb2tWqPoS-tjTo

The other parameters are exactly the same.

Appreciate for you answering

I was able to successfully add ngx_pagespeed to my Nginx server at Digital Ocean. I did an automated install per this: https://www.modpagespeed.com/doc/build_ngx_pagespeed_from_source

The module works - for example I can see it is automatically converting my .jpg images to .webp. Also, curl -I -p http://localhost| grep X-Page-Speed returns the X-Page-Speed: 1.13.35.2-0 header.

However, I’m not able to edit any options. When I try to run something like pagespeed rewrite_images on, or even pagespeed on, I get an error pagespeed: command not found.

Per documentation pagespeed should be the command for Nginx: https://modpagespeed.com/doc/configuration

I tried a couple of other commands:

1. whereis pagespeed returns pagespeed:
2. which pagespeed returns nothing.

As far as I know these should be returning the full path, something like /usr/bin/pagespeed

I'm using the Nginx PageSpeed module, and got an issue when it comes to images managed with jquery.matchHeight.js. I decided to disable optimization on these specific images, to I added the pagespeed_no_transform attribute (I also tried data-pagespeed-no-transform without success):

Can anyone help me to get optimized images, scripts and css files using google page-speed insight. My site had optimized images and other optimized stuff but because of changes in page speed insight tool its all lost. Please help to sort out this issue. Thanks in advance.

I'm using Laravel Page Speed.
This library create many problems with some styles in my admin pages and i want to skip that.

I just learned about rel="preload" and I wonder when it should be used. I found different types of preloads like preloading with javascript etc. as well. Google recently announced it would rank faster loading pages higher (at least on mobile) making pagespeed even more important for everyone.

If you already use HTTP/2 (HTTP/2.0), HTTPS, gzip, CDNs etc. and want to have your sites load as fast as possible: Should you (additionally) use preloads and in what quantity ?

Should you add HTML5 rel="preload" to every link, script, font etc. or just some of them? Maybe only to external ones?

Or is it better to rely on javascript and its libraries to preload resources?

I have a large respository of images, mostly JPEG, which I'd like to optimize using a library like ImageMagick or a Linux CLI tool like jpegtran (as covered in JPG File Size Optimization - PHP, ImageMagick, & Google's Page Speed), but I don't want to have to track which ones have been optimized already and I don't want to re-optimize every one again later. Is there some sort of flag I could easily add to the file that would make it easy to detect and skip the optimization? Preferably one that would stay with the file when backed up to other filesystems?

E.g.: a small piece of exif data, a filesystem flag, some harmless null bytes added at the end of the file, a tool that is already intelligent enough to do this itself, etc..