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The art of tuning a website to deliver it's content quickly and efficiently to the user over a potentially low bandwidth connection.

3
votes
1answer
52 views

Why pay for a distributed DNS service when ISPs cache lookups?

Suppose I've purchased example.com from my neighbor's startup domain name company, superlowcostdomainnames.com (aka SlowDNS). At first DNS is a bit of a performance drag, because SlowDNSs servers are ...
2
votes
1answer
41 views

If I change a Wordpress Theme then will it result in Performance and Page Loading Speed Improvements?

My wordpress blog is running on a very advanced, powerful and e-commerce capable theme. The issue is, this theme is packed with hundreds of DOM classes, Javascripts library and multiple CSS files. ...
0
votes
0answers
14 views

Do lots of redirection chains affect the site speed?

My client has lots of redirection chains. As I know redirection chains affect SEO link equity. But since they have done the redirections 4 years ago I assume they wont have any effect on SEO anymore. ...
2
votes
0answers
22 views

How to determine how much memory 1 million particles in WebGL is using

I would like to know how much memory is being used by a system of 1 million particles in WebGL: I am not really too sure on what to look for in the performance/memory panels in the Chrome devtools / ...
1
vote
1answer
22 views

Template or flat file for CMS?

So it looks like most CMS uses templates, like WordPress or ghost or all other CMS uses templates. But we can still see some flat file CMS on the market. So what's the difference between them? Is ...
1
vote
0answers
24 views

My WordPress site is slow when I'm not using a VPN

I host a WordPress site which isn't behaving as I'd expect. Its taking an age to load, sometimes timing out before its finished. However, if I have my VPN (PIA) enabled, it loads immediately and is ...
1
vote
2answers
24 views

Why is serving cached content to logged in users against recommendations?

I am keen to get some more information on cached pages. I currently have a store through wordpress/woocommerce and use hummingbird to cache pages. On of the options is to opt to serve cached pages ...
2
votes
1answer
44 views

Is Google SEO mobile speed performance ranking per domain or per page?

Google announced that from July 2018 - Mobile speed is a ranking factor. While I am not sure how exactly this is measured, but google hints that the speed score is taken from the CrUX report. Google ...
1
vote
0answers
22 views

Performance Issues with Web App [closed]

I'm currently preparing the release of an online tool: example.net/configurator Unfortunately, I've got massive performance issues. I'm currently hosting at A2 Hosting which I actually thought to be ...
1
vote
2answers
35 views

Blog on subdirectory

I have a very simple doubt relate to blogs on subdirectories. I have a main website built with WordPress and I want a blog with it. When we read about the recommendation to put a blog on the ...
4
votes
2answers
61 views

Is combining / concatenation of CSS and JS technique considered deprecated?

Google used to recommend webmasters to combine external CSS and JS files to improve the page speed. One of these pages was here: https://developers.google.com/speed/docs/best-practices/rtt#...
2
votes
1answer
39 views

Can we improve site speed for Googlebot by directing it to its own dedicated server?

Is it possible to show different server to search engine bots and different server to users in order to improve page speed of the site, specially for a large E commerce website. Idea is to show same ...
0
votes
0answers
115 views

What does these two “median” words mean in this Page Speed Test result?

Here is a copy: First paragraph Data from the Chrome User Experience Report indicates this page's median FCP (1.7s) and DCL (1.8s) ranks it in the middle third of all pages. This page has a ...
1
vote
0answers
18 views

What could cause occasional continued 404 errors that were originally triggered by high website traffic?

I have a website where one page received huge traffic in one moment, causing errors 404. Next day, traffic returned to normal but some percent of this page visitors still receive this error (5-10%). ...
1
vote
0answers
217 views

3 seconds to TTFB in CloudFront

I'm trying to improve the speed of a site and I've noticed that it takes 3 seconds to download some images from CloudFront. To download a 18kb image it takes 3 seconds: And it's a Hit from ...
1
vote
1answer
25 views

How can you view user timing data in Google Analytics split by URL?

Let's say I have a custom user timing in Google Analytics, which represents the time it takes for each page to load all the images above the fold (or a variety of other metrics). Since the images on ...
1
vote
1answer
816 views

Does totally disabling cookies in my WordPress website malfunction Google Analytics?

I personally don't post any kind of external advertisements in any of my websites: Not Adsense, not anything. I just don't charge other organizations and companies to advertise in my websites and I ...
1
vote
1answer
23 views

IIS media server tuning (compression cache limit?)

I have an IIS server with hundreds of gigs of static media files (and no dynamic content). I've done what seem to be the usual steps: RAID tuning, reduce logging & debugging, disable unnecessary ...
0
votes
0answers
75 views

Webpagetest.org - does repeat view display browser cache?

In the documentation is written, to generate the repeat view webpagetest closes the browser and launches it again. Does it mean, the browser cache goes on restart empty and doesn't play any role on ...
1
vote
2answers
512 views

Prioritise Visible Content - Google PageSpeed Insights

Wondering if anyone can help me. I'm having issues with prioritizing visible content (PVC). I've read all the Google documentation and understand the above-the-fold content is the top 500px but can'...
1
vote
1answer
226 views

What does “_blocked_queueing” mean in a HAR file

I'm extracting some loading time data from a site into a HTTP ARchive format (HAR) file, but I just can't find what "_blocked_queueing" means.
0
votes
0answers
12 views

GoogleBot Crawling and Past Event Performance

We have an event site and we noticed GoogleBot crawling our old events, say from five years ago, which also includes Teams within the event, which could be 100 teams per event or more. With that said ...
0
votes
0answers
28 views

Is there any threshold page load time to get spike in the conversion?

I was reading an article here where I found very interesting correlation of conversion rate and page load time. I can't get 2 things here: Why graph is almost flat from 5 seconds to 11 seconds page ...
0
votes
1answer
21 views

Optimisation test services allude to 'inline script block #5', what does this mean

Optimisation text services like Gmetrix and Pingdom Tools often provide feedback like 'inline script block #5', what exactly does this mean and how do you go about identifying and solving this problem....
1
vote
1answer
54 views

If I have too many 301 redirections on magento, will it slow down the server?

I'm using magneto and I currently have 70,000 URLs are being redirected as 301 (From Catalog >> URL Redirects). I need to add another 4000 URLs, because every time we run out-of-stock I redirect the ...
0
votes
1answer
188 views

How can I encourage the browser to cache the HTML5 <video> poster image?

I have a web page with a series of videos embedded on the page: <video controls preload="metadata" poster="/path/to/video1/poster-image-1.jpg"> <video controls preload="metadata" poster="/...
2
votes
1answer
228 views

Performance Issues Using SSL With Cloudflare

I have been using Cloudflare for a while without much consideration to what it was doing. Today I have noticed that there is around 500ms of delay when I view a web page over https when Cloudflare is ...
1
vote
0answers
30 views

Google Analytics considers Gleam App's loading time as a Page Loading time.

I have embedded the Gleam App widget on my client's website. Let me inform about the Gleam app first. The Gleam App is used for the Giveaways. The participant has to complete certain entries to get ...
1
vote
1answer
36 views

What Internet connection speeds are webpage testing sites basing their results on?

The loading time of websites can be measured with many popular tools like tools.pingdom.com, Alexa, and more... According to answers like this one, load times might be considered in these categories: ...
1
vote
0answers
20 views

Improve performance of tracking scripts - facebook, linkedin google etc

I have Google Tag Manager setup to manage all my third party tracking scripts. These include; LinkedIn, Facebook, Hubspot, Google Adwords/Remarketing etc. Is there a way I can optimize the ...
2
votes
1answer
108 views

How to find concurrent number of session per second?

As a web-server hosting an application for a client, which is high-volume or transaction server, I am required to find out "number of concurrent connections" currently in use by the server. This is ...
3
votes
1answer
511 views

Adding “expires” directive in Nginx conf for assets causes “404 not found” errors

I have a live Django site running gunicorn, nginx, supervisord. I am trying to implement the suggestions found here to increase my page speed score by using gzip in nginx. The resulting config file is ...
1
vote
0answers
148 views

Slow website by Plesk [closed]

Have a good quality server with good performance. Till now I don't had this kinde of problem. So,I have installed Plesk panel,four months ago. I develop an ecommerce project using Laravel framework. ...
1
vote
1answer
166 views

How do I set up a cookie-free subdomain when the website is on the naked domain (no “www”)?

The website (Wordpress) acts on http://example.com and sets cookies. Will http://static.example.com be cookie-free? Or http://static.example.com would be cookie-free only in case if the website acts ...
5
votes
1answer
477 views

Google Pagespeed asks to eliminate “above the fold” files that are required for the page to render

I have run my website into Google Pagespeed and it returned "Eliminate render-blocking JavaScript and CSS in above-the-fold content" The problem is that those "render blocking" assets are required ...
1
vote
1answer
33 views

Speeding up website [closed]

My website has poor speed both for desktops and mobile. We are not authorized to minimize images. What is the best option to speed this up? It is in WordPress. We have also used plugins like WordPress ...
4
votes
1answer
163 views

Parallelize downloads with one server by using apache

People seem to be pushing all of this as a way to sell CDNs, but surely it can be just done with apache. If browsers can only download 8 files at a time from website.com, why cant I just setup 2 ...
2
votes
1answer
66 views

Slow PHP redirects lead to loss of marketing clicks

Ok so we are running liquid web server For some reason we are losing around 70% of all of our clicks that we are tracking on our end than we are seeing on Hasoffers tracking platform. These are ...
1
vote
0answers
72 views

Cache-Control not being picked up by performance analysis tools for my website (Amazon CF/S3) [closed]

So, I have this website that is hosted in Amazon S3/CF and when I run any Performance analysis tool I get the following recommendation to set browser caching in some files: So, I set in (most of the ...
1
vote
0answers
25 views

“Site unreachable” when using asset parallelization with Cloudflare CDN [closed]

I use WordPress site with CDN (Cloudflare). I want to serve static files(images, js, and css) from a different static cookieless domain. I create subdomains in my DNS, but I can't add images or ...
0
votes
1answer
596 views

What image compressor Google Pagespeed Insights uses? [duplicate]

It's very inefficient to compress all my site's images in Google's preferred compresion by running webpage after webpage in Google GPI, downloading all images and upload one by one to my CMS image ...
1
vote
3answers
1k views

Is a huge style attribute bad for SEO?

I'm working on a website using wordpress. When opening Chrome's console (Ctrl+Maj+I), I couldn't help but notice a HUGE style attribute and tons of scripts directly written into the HTML document. ...
1
vote
1answer
49 views

Placing javascripts at the page's bottom and HTTP/2

Does the placement of javascripts at the bottom of html document still gives any loadtime wins, if the site runs on HTTP/2?
1
vote
1answer
3k views

Google PageSpeed Insights reports that bootstrap.min.css is render blocking

I'm trying to achieve an over-90 grade on PageSpeed Insights. My last error comes with bootstrap, Google detects the file bootstrap.min.css as a render blocker. The file is located in my server. I'...
1
vote
0answers
334 views

Getting this error for last 3 days “Timeout while fetching the main resource.” [closed]

I am getting "Timeout while fetching the main resource." error for one my site for last 3 days. Check here speed insight tool shows erratic screen shot of site. sometimes show partially loaded ...
4
votes
1answer
83 views

Is it ok to block search engine bots from China and Russia on USA based eCommerce site?

After blocking all traffic from China and Russia ( using Incapsula ) on an eCommerce application which only ship into USA, I noticed a significant performance improvement. Is there any drawback of ...
2
votes
1answer
55 views

Will upgrading hosting improve performance of slow WordPress plugins

I have built a website for a community in the last year. In the last few days I realised that it has become a very slow one. I found out that two plugins (Polylang and All In Event Calendar) causes ...
1
vote
0answers
11 views

What should I worry about after installing Magento CE [closed]

I am currently managing a project of Magento CE new build (to replace a Woocommerce) on a UNIX system, provided to me by Digital Ocean. My friends keep saying that Magento is a performance killer, ...
0
votes
2answers
83 views

Is it faster to request a single 7KB file faster than to request 6 files totalling 7KB?

I had 6 JavaScript files that total 7KB in size. I've just added the source for each file into a single plugins.js script and it's also 7KB in size. Is having one 7KB file faster to load than 6 files ...
2
votes
1answer
77 views

How to display random demo Google ads for testing

To benchmark an application I want to display ads in Google Publisher Tag (GPT) slots, even if they aren't defined on the publisher end yet. I have a network id and ad unit ids, but no ads are ...