How can I detect image that is never used in the website, to improve loading speed of the whole content?.. Thanks in advance...
If an image is never used or referenced in the html then it won't be downloaded by the browser.
Even if they are out on your hosting, they will just be sitting there like storage, and not have an effect on speed of page times.
Here is a good reference for loading time optimization.
http://sixrevisions.com/web-development/site-speed-performance/
Defer Loading Content When Possible
Use External JS and CSS Files
Use Caching Systems
Avoid Resizing Images in HTML
Stop Using Images to Display Text
Optimize Image Sizes by Using the Correct File Format
Optimize the Way You Write Code
Load JavaScript at the End of Your Document
Use a Content Delivery Network (CDN)
Optimize Web Caching
Related
I am using Babylon CDN for my 360 images on my Shopify site. When I get the GTMatrix site speed report, Babylon CDN has HIGH flag that is showing slows the website load speed. How can I reduce Babylon CDN load size to increase site speed?
Alternatively, how can I prevent it load and I want to render it when I click the button?
Thanks
The technique you're describing is called lazy loading. Here's a shopify blog describing it.
You may be able to achieve this by using the async script tag.
<script src="https://cdn.babylonjs.com/babylon.js" async></script>
There are couple of improvements that can be done to increase images load speed
Compress images (https://tinypng.com/)
Use correct size resolution
Convert images to modern webp format to reduce file size
Use images lazy load (https://github.com/aFarkas/lazysizes)
I have developed wordpress website but after hitting it is taking so much time for loading , this is my website link http://www.dahotreanddahotre.com/.
Tell me any plugin or manual setting such that i can decreases the loading time of my website?
There are a few things you can do:
Cache
Use a cache system: https://wordpress.org/plugins/wp-super-cache/
This will let you serve your fixed pages a lot faster to the user.
Minify
Use some minifier: https://wordpress.org/plugins/fast-velocity-minify/
This will make included javascript, css files smaller and thus they will take less time to load
Identify image needs
Looking at the network dev-tools a lot of the loading time (4 seconds +) comes from huge images:
1st image (1.47MB): http://www.dahotreanddahotre.com/wp-content/uploads/2019/03/We-intend-to-be-your-financial-lifeline.jpg
2nd image (1.64MB): http://www.dahotreanddahotre.com/wp-content/uploads/2019/03/We-are-startup-friendly.jpg
Use a Image compressor before uploading them and don't upload images that are bigger than you need.
For example image2 is: 4,300px × 2,862px this could be reduced and compressed.
By decreasing it's size to: 2,150px x 1,431px and compressing it, it becomes only: 350kb
Checking unreachable resources
Still looking at the dev tool I could see some fonts which where giving a 404 error (almost 2 seconds loading).
This means the font is unreachable but the browser still spends time to try to load it.
Make sure all resources are reachable and unused one are deleted.
Use good hosting
Avoid bunch of plugins
Get a custom wordpress theme starting from scratch
Avoid page builders
Optimize images used in website
I want to have a website page load images faster or where the images don't stop the user from seeing the text on the pages before the images finish loading.
1. if I have text on a website page. Does the text render first so the user can see text while the images are still loading?
2. If i have 3 mb of images and have my server that is hosting the website render 1.5 and then move the other 1.5mb to something like flickr and have the image source point to flickr, will that be better and load faster. Or say I just have all the images pull from flickr?
Please help me.
Its a WordPress site, and Clouldflare free cdn does something weird to my theme. So not an option. I also don't want to lazy load for other reason.
EDIT : o yea, if I host all the images on Flickr does that give away link juice (Domain Authority Rank)?
Images do increase overall load time, but they aren't render blocking. The whole page will render (barring render-blocking CSS or Scripts) and images will pop in when they are done. If you want to avoid that flash, you can lazy-load them, or otherwise put the final image's sizes on a container element, so the text is already "moved".
You can't really "Speed Up" image loads. The best thing to do is cut down on the number of images, if applicable, and lazy-load any that don't need to be requested initially. The next best thing (and arguably more important overall, I suppose) is to optimize your images. There are a handful of WordPress plugins that will do this for you, or you can do it in PhotoShop - and even some image CDN's will do it. This basically means, don't load a 1MB image if you don't have to, for "web display" purposes, you can serve a 200kb image that looks almost as good.
A side point, you can "speed them up" a little by having them served from a faster server, but that goes for anything web related. Throw it on better hardware to get better performance (for the most part).
If they are large images, you should first and foremost, optimize them. Make sure they are the smallest file size possible. Also, don't bother splitting "1.5mb" of them over to another host. Either upload them directly all through a CDN (some even tie into your WP Library, like Cloudinary), or keep them local to your site. You'll save yourself some headaches later.
If you have a photo heavy website (photography or other types of galleries), 3mb isn't really an awful lot - but again it's best to serve a more compressed image, you can even link the image or a button to the "full resolution" one.
I have website and i have lots of images on home page.
Almost 60 images in row and i have almost 5 rows of carousel.
But all this image comes from remote website feed so i cant optimize them and the occupy lots of size
when i test my website in gt matrix it shows me 26mb of page so it is obvious it will take
much loading time.I have applied lazy loading images,how ever the speed is very slow
What steps should i take to speed up this kind of page?I dont want to use any plugin because they brake website some times
Upon showing images from another server makes the site slow, because that server may be slow.
So better you try to get those images from your server if possible, else you can try using
plugins like wp-supercache
Minify all your JS and CSS files
For better page speed and avoid these error you should try following things.
Enable Compression from Cpanel
You are using Wordpress so use any of the cache plugin.
Use header expiry using httaccess or page header.
minimize you scripts (css,js).
Use compressed images (jpegtran,pngout).
If your image is casing issue try to use CDN for images.
This will help you to improve page speed.
Crop the images using timthumb. There is wordpress plugins for timthumb probably. Check in wordpress directory as well as it's use. Once images size is reduced, Page would be loaded fast. Additionally, follow the #Jobin Jose's comment, will help you to optimize the speed. Moreover, use WP Super Cache plugins.
I am interested in adding a landsacpe footer on my website but the image size is 115KB and will load on every page... Is there any effective way to load an huge image such as this one:
http://gyazo.com/5b1b7312ec4370873368df0181e41b13.png
Here's a few things that may help you:
EDIT: I tried the second tip in the list below (tinypng.com) and it reduced the size of your image with 71% to 39.1 KB. So that's a big win.
Make sure to set the cache headers on your webserver so that the browser can cache the file. Also use the same URL for all other times you use the image. Doing these two simple things will make sure that the image will only get downloaded the first time the browser requests it. All other times it will be loaded from the browser's cache.
Make sure to check if the image is as small as it can be. If you use a PNG then use tools like https://tinypng.com/ to squash all metadata out of the image. If you use a JPEG then maybe lower its quality. If you use Photoshop make sure to "save the image for web". This will also reduce the size. For photographs you are mostly better of using JPEGs, for text or other images that need to be lossless use PNG or GIF.
Loading images will not really slow down your page that much. Not like JavaScript anyway. Loading Javascript will block the rendering of the page until the JS file is downloaded unless you use special loading techniques. That is not the case for images: the page will continue being rendered and the user can start using the page.
If the image is placed using an IMG tag the make sure to set the width and the height of the image in the CSS (or using the img width and height attributes). That will make sure that the browser does not need to reflow the page when the image is downloaded. It will know what size it needs to be even before the image is downloaded.
There is a maximum number of parallel requests per domain that the browser will do. If the image has a very low priority you could postpone its loading and wait for the onLoad event. This will make sure the other resources (with a a higher prio) will be downloaded first. This will require some JavaScript, but not that much (Use an image lazy loader, there are many).
As I said in the previous item the are a maximum number of requests PER DOMAIN. This is why you could also create a new (sub)domain and load some content from there. It will increase the total number of resources that will be downloaded in parallel. using a CDN will also help here because they also have a separate domain (and they are optimised as well).
If you want to read some REALLY GOOD books about this kind of optimising, read these:
http://www.amazon.com/High-Performance-Web-Sites-Essential/dp/0596529309
http://www.amazon.com/Even-Faster-Web-Sites-Performance/dp/0596522304