Questions tagged [page-speed]

Page-Speed normally refers to the time it takes for a web-page to be presented to a browser in a "fully loaded" state.

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Ideas to improve website loading speed?

Are there any ways in which I can improve the loading speed of a website? I know that Google is really pushing loading speeds and with the popularity of mobile websites it's now imperative that sites ...
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  • 1,522
77 votes
12 answers
51k views

How can I simulate a slow connection for page load?

I have a fast server, and a reasonably fast home Internet connection. How can I simulate my page loading on a slow connection?
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3 votes
1 answer
120 views

How to improve CLS. Chrome Lighthouse shows GREEN but GSC shows RED?

I have no Idea what is going on. The lighthouse on different devices shows my page CLS 0.002, but when I go to my Google Search Console -> core web vitals the CLS is in RED ZONE >0.25. I ...
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  • 105
40 votes
4 answers
106k views

How do I set expiration headers for CSS, JS, and Images?

I have recently analysed my website with pagespeed addon on firebug. It suggested me to set expiration on CSS, JS and image files. I am wondering how do i do this?
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  • 1,658
11 votes
3 answers
26k views

Leverage browser caching for Facebook, Google+, or other 3rd party resource files

I tested my website with Google PageSpeed Insights. I did cache optimization in my .htaccess, but it didn't affect resource files that are from Facebook and Google+ Leverage browser caching ...
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5 votes
3 answers
861 views

How do I set up Google PageSpeed Service for my site?

It seems I can't set up Google's PageSpeed Service. When I do it in the Google services panel, a message comes up like: "Your site may be directing live traffic." What can I do to resolve this and ...
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5 votes
1 answer
493 views

Will Google use field or lab data for ranking sites with core web vitals performance metrics?

Starting in May 2021, Google will begin using their Core Web Vitals metrics to inform search ranking. Will they will use field or lab data as the source of these metrics? Our site scores well on field ...
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4 votes
1 answer
2k views

Google crawlers screen size

Imagine a I have two types of images (A and AAA(heavier)) for the same website: depending on the size of the screen it will show one image or other. Now I'm wondering what images (A or AAA) loads ...
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4 votes
1 answer
356 views

Google PageSpeed, optimizing Google's own elements

I'm trying Google's PageSpeed online service Ironically, it's primarily highlighting Google's own services as something that needs improvement on my site 1) jQuery from Google: blocking. So I moved ...
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  • 312
2 votes
1 answer
4k views

DNS takes too long to resolve

I have a site and its load time needs improvement. When I monitor it, the DNS takes too long to resolve. Pls see the results here: http://tools.pingdom.com/fpt/#!/GOv42ma85/http://www....
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  • 669
11 votes
4 answers
16k views

Specifying image dimensions to improve browser performance

I recently ran an audit on my web site using Google Developer Tools. My images are all the same size (500 horizontal by 300 vertical pixels) so I thought it would be better if I left out the image ...
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8 votes
4 answers
10k views

What is the screen size used by Google's PageSpeed Insights for mobile previews?

Google's PageSpeed Insights allows one to check a website's speed issues for both desktop and smartphone devices. I have some media query CSS for smartphones on my website, but I am unsure about ...
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5 votes
1 answer
3k views

Effect on SEO of lazy scrolling on HTML comments

I am thinking about using a JS script that lazy loads HTML when scrolling ( http://ivorycity.com/blog/2011/04/19/jquery-lazy-loader-load-html-and-images-on-scroll/). I am not too sure about whether ...
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  • 53
4 votes
1 answer
3k views

How to avoid request of all images used for different devices using media query?

I want to know, how can I avoid loading all images I created for different devices using media query. Currently my mark up look like below : <img src="/media/1062/lg.png" alt="Fresh from ...
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  • 173
3 votes
4 answers
10k views

Page loading problem. Page is very slow

Regarding the domain http://www.pravninasvet.com, there is a problem where it sometimes loads fast, sometimes very slow. The domain is registered by godaddy, the server is in Germany. But when the ...
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3 votes
1 answer
204 views

What's the threshold for creating data URI in css?

I'm interested in benchmarking, or best practices. I have 10 icons on my website. They are all background:url(…) no-repeat;. Assuming sprites are not the answer (for any god given reason) how big or ...
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7 votes
2 answers
10k views

Cache external static scripts?

In my never ending quest for a faster website, I thought perhaps I could cache some scripts. I'm using Yslow to rate my site, everything is pretty much A (which is great, our website on Pingdom loads ...
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  • 2,370
6 votes
2 answers
894 views

Is it normal to have some huge anomolies in Google Analytics site speed tracking?

I've recently started using the new _trackPageLoadTime function in Google Analytics to measure page load times. However, I have noticed a few pages appear with a huge "Average Load Time". One page is ...
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5 votes
1 answer
921 views

Page Speed Online vs Chrome Extension

In optimizing a content blog of mine with the goal of achieving the highest page speed score possible for obvious reasons (user experience, SEO, etc..), the results I'm obtaining are throwing me for a ...
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4 votes
2 answers
521 views

Mobile Browsers! Do they ignore `<noscript><img>` (Responsive Design with Framework Zurb Foundation (Interchange/Noscript))

Experimenting with Interchange Responsive Images I'm experimenting with Interchange by Zurb Foundation to serve various images versions to different devices. For example 200x100 for mobiles, 300x100 ...
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4 votes
2 answers
4k views

How can I make redirections cacheable to speed up load times?

Google PageSpeed says this: Avoid landing page redirects To speed up page load times for visitors of your site, remove as many landing page redirections as possible, and make any required ...
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4 votes
4 answers
452 views

Prepare website for heavy traffic

A site of mine is going to be featured on a very popular tech blog. I already upgraded my server to handle the traffic. What other things should I be prepared for?
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  • 99
1 vote
3 answers
206 views

Images based website speed

I have a WordPress site which is 90% based on images. I've installed Wp-Super-Cache, now it seems to load a little bit faster. I've made a speed test on Pingdom Tools: Page size 4.7MB Load time 5....
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  • 251
6 votes
1 answer
1k views

Connection speed for a website from UK to Australia

I need to open a website only for Australian customers. The fact is that our provider's servers are all housed in the UK. What do you suggest is better? Leaving our website in the UK? Or buy a ...
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2 votes
2 answers
286 views

Determine web page draw time via a program

Google Chrome has a nice tool to determine the time the page begins drawing, in the Network tab in Developer Tools. Similarly sites like webpagetest.org can tell you the draw time and give you the ...
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2 votes
3 answers
665 views

Resizing the images for faster page load

I was checking my sites page load time. I saw that I could improve it by reducing the size of the images which were getting resized by css. Now I wanted to ask if resizing the images is worth the page ...
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2 votes
1 answer
817 views

Page load speeds effect on crawl rate

We've noticed a big drop in the total pages crawled per day on our site, we have no control over the crawl rate in Google Webmaster Tools so it's possible this has been changed by Google. However it'...
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1 vote
1 answer
94 views

Reduce CloudFlare Wait Time

I installed CloudFlare as a test to one domain on my server, supposing it would be quicker. But it's not. The waiting time (I think, otherwise known as time to first byte) has gone up considerably. ...
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1 vote
2 answers
576 views

How do I decrease first byte time with GoDaddy and GitHub pages?

I've been trying to optimize my site as much as possible. One thing I can't figure out is reducing first byte time as WebPagetest gives me an "F". Does anyone have any tips for this? My site domain is ...
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1 vote
1 answer
4k views

Can .htaccess be used to cache AdSense JavaScript to improve the pagespeed score?

I'm AdSense publisher and I need to improve the page speed score for my site. It already gets 90/100 for speed and 100/100 for User Experience, however Google AdSense code is preventing it from ...
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