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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15
votes
3answers
23k views

What's an acceptable “Avg. Page Load Time”?

Is there any industry rule of thumb for what's considered an unacceptable load time v. an OK one v. a blistering fast one? We're just reviewing some Google Analytics data and getting 0.74 Avg. Page ...
1
vote
2answers
3k 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 ...
4
votes
1answer
1k views

How to fix “Leverage browser caching” error from Page Speed plugin

I'm using the Page Speed Firebug plug-in to check my sites. But I don't know how to fix the "Leverage browser caching" error, since I don't know you specify a cache lifetime to the browser in images ...
1
vote
1answer
610 views

requests with http://. should I block?

I took a look at my logs and found out that earlier this year, random computers made a request to resources and my log recorded it as follows: "GET http://testp3.pospr.waw.pl/testproxy.php HTTP/1.1" ...
0
votes
2answers
36 views

Google Page speed test showing 0 page speed

I tried to test the speed of a website and it appeared to show 0 speed. Why would a site have 0 speed? Please guide me. Thanks.
2
votes
1answer
126 views

How do I setup origin domain for Google PageSpeed Service?

I have a WordPress site with cPanel (WHM) with VPS. Today I configured Google PageSpeed Service for my WordPress site. After I submitted my WWW domain, PSS automatically added my naked domain (without ...
0
votes
1answer
32 views

Reducing waiting delay to webpage rendering time?

I ran a few tests on my website at webpagetest.org and while the Time to First Byte is under 200ms, it seems that in all tests I have run in different browsers at different locations, the page is ...
1
vote
2answers
557 views

Using Google pagespeed service - w3 validator gives errors

I've started using google pagespeed service and now when I check my site on http://validator.w3.org/ with doctype HTML5 and encoding UTF8 - I'm getting more than 80+ errors and 95% of them are errors ...
0
votes
3answers
60 views

Do websites have to rank an “A” on GTMetrix?

Lately I've noticed that a lot of clients refer to the GTMetrix rating system when discussing deliverables for their website. In their eyes, GTMetrix is great because it allows them to validate the ...
0
votes
2answers
44 views

What size (in bytes) constraints are industry standard for web images?

Back in the day you wanted your images to be 5 KB and going above 30 KB was considered crazy. What are the industry standards these days? I just ran GTMetrix on Yahoo.com and came back with images ...
3
votes
1answer
125 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 ...
4
votes
1answer
2k 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 ...
1
vote
0answers
21 views

Website is becoming slower until deleting cookies [closed]

My website (based on Prestashop) has honest performances. Even using online testing tools. But navigation is becoming slower over days, only for returning visitors. The website is becoming slow for ...
2
votes
2answers
52 views

Pagespeed rating vs server speed from a SEO perspective

What's more important for my website, from a SEO perspective? I first had a page load time from around 900ms and a google rating from about 70. Using some plugins I managed to get the rating up to ...
2
votes
1answer
505 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 ...
1
vote
3answers
388 views

Eliminate render-blocking JavaScript and CSS in above-the-fold content

When you seek speed score in Google Page Insight, you may be seen a warning like "Eliminate render-blocking JavaScript and CSS in above-the-fold content ", i have been looking for a solution to fix ...
0
votes
2answers
87 views

Improve load speed of web page with many images [duplicate]

I own an ecommerce website built with Magento that has many images in the homepage for promotional banners. What is the best way to improve load speed? Reducing the file size sacrifice quality, so is ...
2
votes
1answer
98 views

Will asynchronous JavaScript affect SEO?

As page load time affects SEO ranking. In my site I am having some asynchronous JavaScript like AddThis, Google Translator which makes my page load time longer. I want to know whether is there any ...
2
votes
2answers
129 views

Does SPDY benefit SEO rankings?

Google have stated that speed is a ranking factor: https://www.mattcutts.com/blog/site-speed/ Does implementing SPDY have any consequence for SEO?
5
votes
5answers
265 views

Speeding up website“speed”?

We use Google Analytics to measure traffic on one of our websites (who doesn't?). One of the thing that strikes us is the "page speed" tab. It shows that our website takes on average 5.69 seconds to ...
56
votes
9answers
27k 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?
1
vote
1answer
72 views

When a mod_rewrite redirect is in place, do absent <img>s still cost more server time than present <img>s?

I have a series of webpages in which the <html> refers to: <img src="img1.png" [...] /> <img src="img2.png" [...] /> <img src="img3.png" [...] /> After I realised that ...
1
vote
1answer
458 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 ...
2
votes
2answers
940 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 ...
1
vote
1answer
61 views

Why does PageSpeed differ in developer tools, website and Analytics

I just tried Google PageSpeed Analysis in the developer tools, Google Analytics and the website itself (https://developers.google.com/speed/pagespeed/insights). Now, in each of them I get differing ...
1
vote
0answers
133 views

ExpiresByType not working for PNG images when set in .htaccess for a WordPress site

In my website I have the expires headers settings reported below. When I use Google's PageSpeed Insights test I get the message: XYZ.png expire headers not set, which I'm getting for all the PNG files ...
8
votes
1answer
1k views

Is gzip compression available for GitHub pages?

I'm using GitHub pages to host my site. While checking Google PageSpeed Insights, it recommends that I enable gzip compression. Since I have a static site hosted on GitHub, I'm not sure that is ...
3
votes
4answers
1k views

Long 'Wait' Time for three php/CSS files. Is something blocking them?

I have been speed optimizing a Wordpress site to little effect. There are three files CSS-related php files from the Wordpress theme that are delaying page loads on the site. One of the three files ...
3
votes
1answer
179 views

What if one certain page is much slower than the rest of your website?

I have a very fast website, but there is one overview page that queries a lot and takes 16 to 17 seconds to load. Will this have an impact on my SEO?
1
vote
0answers
88 views

Google PageSpeed: Generating critical css for css file served from CDN

We were trying to optimise the website using google pagespeed and now having some issue: We're using nginx_pagespeed module Trying to enable the prioritize_critical_css filter Since the CSS files ...
1
vote
3answers
169 views

InstantClick effect on SEO?

InstantClick.io is a pretty awesome JS library that makes a website feel a lot faster (in most cases) by prefetching links when a user is hovering above them. This will cut off at least about 100ms ...
1
vote
2answers
185 views

Background Image Loading Optimization for SEO

I am implementing a product image slider for an ecommerce website. I want to make sure that the page is nice and fast for SEO purposes (as site speed is a factor in ranking). I'm not sure if it ...
4
votes
2answers
198 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 ...
5
votes
3answers
3k 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 ...
1
vote
2answers
63 views

Joining and compressing all javascript files together - good idea?

Curently, I avoid loading any unnecesary scripts on individual pages of my site. I have a class that remembers all javascript files that were requested during PHP processing and adds them to HTML. I ...
1
vote
1answer
212 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 ...
0
votes
2answers
505 views

mod_pagespeed not compressing images

mod_pagespeed is not compressing images on my homepage. My current config has: AddOutputFilterByType MOD_PAGESPEED_OUTPUT_FILTER text/html What is the usual setting people use for mod_pagespeed ...
5
votes
3answers
704 views

Best practices when loading images for improving page loading speed

I am working on optimizing a page's loading speed. Here are some analytics: Notice how the images, although only accounting for 65% of the total size (1.1MB), are by far the slowest loading ...
1
vote
2answers
117 views

Does the JavaScript that Google Analytics Experiments adds slow down alternate versions, and how could I measure this?

I am using Content Experiments in Google Analytics to test three different landing pages. This uses JavaScript on the initial page to load the alternates. Would the additional JavaScript add to the ...
11
votes
3answers
7k views

How can I replicate Google Page Speed's lossless image compression as part of my workflow?

I love that Google's Page Speed is able to losslessly compress a lot of my images, but I'd love to make it part of my workflow, prior to uploading a site and making it live. Is there anything I can ...
3
votes
1answer
190 views

page load wait time on my machine is 55ms but on test websites like pingdom.com it is 1.5 seconds, why would this happen?

When I analyze the website's page load speed in Chrome I can see the wait time (where the return response files of the sever are being generated) is 55ms and total page load time is 1 second or much ...
2
votes
6answers
102 views

Regarding improving site performance

I have an e-commerce website and have close to 9000 products in it with each product having 3 pictures at least. Now my site is loading at an average speed but I want to improve it, as I will be ...
1
vote
0answers
11 views

How to combine GZip + CDN for faster page loads? [duplicate]

I made a Speed Test on my site via online tool. The tool recommended enabling compression to speed up the site. As far as I understand this requires some changes on server (already done by hosting ...
1
vote
2answers
750 views

Google Pagespeed not recognizing minify, cache leveraging, etc

Recently, my sites score completely dropped in site optimization/speed in the Google Adsense rating system. When using Google PageSpeed Insights it tells me quite a few things. One being to leverage ...
1
vote
1answer
37 views

What kind of increase can I expect from improving site speed

I have a pretty slow site. This is what WMT measured: Now I know speed is a factor in SEO, but considering it is very difficult to make the site faster, I'm trying to evaluate the ROI of this effort. ...
5
votes
5answers
1k views

How to test the speed of a page that is guarded behind login page?

For public page, I can use pingdom.com to calculate the response time/uptime of a page over a certain period of time. However, pingdom cannot time the response time of a webpage guarded behind a ...
0
votes
1answer
48 views

Is my website is too slow? [closed]

I checked the speed of my website with http://tools.pingdom.com/ . Results: Per. Grade = 85/100 Req.s = 18 Load Time = 1.94s Page Size= 96kb Is this result is good for my website(also consider ...
1
vote
2answers
173 views

Google Page Speed's “above the fold” CSS tuning

Putting all 15kb CSS file inline on 100 pages of the site is not smart I think. How do I pick which CSS classes and IDs from CSS file to put inline (and leave other ones on external CSS file) to a ...
3
votes
1answer
162 views

Site speed: less KB image vs. less HTTP request

I have an interesting problem, I guess... First of all, I want to use sprites, to reduce the HTTP request on my site. That is because I know it's better for SEO and it makes the site faster, most of ...
1
vote
1answer
1k views

How can I get my website to enable gzip compression?

I'm currently trying to increase the speed of my website and I noticed that, when I run it through ismyblogworking.com, I get a message that reads "your blog application doesn't support gzip ...