Well-optimized images -
webp is an even better format than PNG because it was developed by Google to have a smaller file size and better web compression. With WebP you get faster downloads without losing image quality.
WebP is supported by the latest version of most desktop and mobile browsers, including Chrome, Firefox, Microsoft Edge and Safari. Please note that older versions of Safari do not support WebP images. There are many different online tools that can convert JPEG or PNG image files to WebP, like TinyIMG.
Adobe, Webflow, Adobe and many other software platforms have built-in WebP converters. You should compress images before uploading them to the CMS, if possible.
Never publish uncompressed images on your website because it will tank the page loading speed an SEO ranking factor and annoy users.
You should search for image size guidelines for the CMS your website is built on to find out what the default sizes are and how to change them. It just has to be indexable and publicly accessible. There are many different image sizing guidelines for specific elements, page types, and SEO goals.
We like 1, x 16x9 aspect ratio the best , but other minimum viable options include:. Use all three aspect ratios 16x9, 4x3 and 1x1 , and mark them up in the structured data by using an array.
Minimum sizes are:. The best image sizing for blog or article hero images is completely dependent on the design of your website. Here's what we typically recommend:.
Image filenames should be optimized before uploading the image to the site. Alt text was originally used back in the days of slow dial-up connections to convey the content of an image to users who disabled images in their browsers.
You can tell the search engines exactly what an image is by using the alt tag, but remember to keep it short and to the point. If you must use an image with text that a user is expected to read, use the image alt tag to repeat verbatim what the text in the image says.
But now Google can easily extract text from images. Unlike image alt tags, image captions are visible to web page visitors and provide more context for images used on the page. Because eyes are drawn more to images than to text, well-crafted image captions are a good way to emphasize your main point or keep users engaged by providing useful information.
Google will also use the information in image captions to better understand the content of the image. A title tag is the text that appears when you hover over an image or link.
If you choose to use the title attribute for web images, make sure any text in it is purely supplemental and not essential, since most of your visitors will probably never see it, and people using smartphones and screen readers cannot access it.
Momentic is an SEO agency in Milwaukee, WI. About us. Momentic Pricing. Monthly SEO Plans. SEO Audits. White label SEO. SEO Resources. Customer-led SEO. Google update tracker. Momentic Blog. The best image formats for SEO Choosing the optimal format for your website images results in a quality image on all screen sizes and can improve page speed.
Customers can even pick between lossless and lossy compression depending on their needs. Imagify is created by the same team who developed WP Rocket, which most of you are probably familiar with. It is WooCommerce, NextGen Gallery , and WP Retina compatible. It also has a bulk optimization feature and you can choose between three different levels of compression, normal, aggressive, and ultra.
It has a restore feature as well, so if you are unhappy with the quality you can one-click restore and re-compress at a level which better suits your needs. There is a free and a premium version. You are limited to a quota of 25 MB of images per month with a free account. Getting rid of the original image and resizing your larger images can also be done with this plugin.
Imagify also compresses images on their third-party servers , not yours, which is very important when it comes to performance. Moreover, the plugin provides lazy loading and efficient image replacement — it downgrades the image quality if the visitor has a slower internet connection — which makes it stand out from the crowd.
All the images that Optimole compresses are served via a fast CDN. You can try Optimole for free or upgrade to the premium plan if you need extra bandwidth and processing space. The Optimus WordPress Image Optimize r uses lossless compression to optimize your images. It supports WooCoomerce and multi-site and has a nice bulk optimization feature for those with already large existing media libraries.
It also is compatible with the WP Retina WordPress plugin. There is a free and premium version. In the premium version you pay once annually and you can compress an unlimited amount of images.
If you combine it with their Cache Enabler plugin you can also dive into WebP images , which is a new lightweight image format from Google.
WP Smush has both a free and premium version. It will reduce the hidden information from images to reduce the size without reducing quality.
It will scan images and reduce them as you upload them to your site. It will bulk smush up to 50 files at once. You can also manually smush if you want. It will smush JPEG, GIF, and PNG image types.
File sizes are limited to 1MB. TinyPNG uses the TinyJPG and TinyPNG services the free account lets you compress around images per month to optimize your JPG and PNG images.
It will automatically compress new images and bulk compresses your existing images. It will convert CMYK to RBG to save space. It does not have a file size limit. The ImageRecyle plugin is an automatic image and PDF optimizer. This plugin focuses on not only image compression but PDFs as well.
One really handy feature is the ability to set the minimum file size for compression. For example, if you have images that are 80 KB in size, you can have it automatically exclude them from compression.
This ensures images and files are never compressed too much. It also includes bulk optimization and auto image resizing. Note: They have a free day trial, but this is a premium service, and images are uploaded and compressed using their servers. The EWWW Image Optimizer helps you make your images smaller and your site faster with less hassle.
With no size limits and plenty of flexibility for advanced users, you can use the defaults or customize the plugin completely to your liking. The free mode allows unlimited JPG compression and WebP conversion and is great for hobby sites or blogs that are just starting out.
All EWWW IO users can use the Bulk Optimizer to compress their existing images or use the Media Library list mode to pick and choose specific images to compress. Additional folders can be scanned to make sure every single image on your site is properly optimized. EWWW IO even allows you to convert your images into next-generation formats like WebP or find the best image format for an image with multi-format conversion options.
It also unlocks PDF compression and includes convenient day image backups. With the optional Easy IO CDN, images are automatically compressed, scaled to fit the page and device size, lazy loaded, and converted to the next-gen WebP format.
We first uploaded 6 uncompressed JPGs, all of which were over 1 MB in size, to our test site. We then ran 5 tests through Pingdom and took the average. As you can see from the speed test below, our total load time was 1.
As you can see from the speed test below, our total load time was reduced to ms and the total page size was reduced to 2. Our total load times were decreased by That is why image optimization is so important, the process above was all automated by the plugin.
The only other dramatic optimization you could make would be changing up your hosts. Imagine moving to Kinsta and optimizing your images! If you have other optimization warnings from speed test tools, make sure to check out our post on Google PageSpeed Insights and our in-depth Pingdom walkthrough.
Another recommendation is to use SVG files alongside your other images. SVG is a scalable vector format which works great for logos, icons, text, and simple images.
Here are a couple reasons why:. Genki wrote a great article where he compares the size of SVG vs PNG vs JPEG. Below are a few takeaways from his testing in which he compared the three different image types. As you can see above, the SVG is a decrease in file size of And when compared to the PNG, Check out our tutorial on how to use SVGs on your WordPress site.
Oh, and make sure to check out our tutorial on hotlinking , to prevent people from stealing your images and bandwidth. Have you formatted your images for better performance?
Do you format them by hand, use a plugin, or both? Is there another tool or plugin you would recommend? Do you have something to add? Let us know about your techniques and best practices in the comments below!
Brian has a huge passion for WordPress, has been using it for over a decade, and even develops a couple of premium plugins. Brian enjoys blogging, movies, and hiking. Connect with Brian on Twitter. Great list! Thank you! Thanks David and Gary! We definitely included Imsanity.
I absolutely loved this post! Was going to write something similar! Great write-up! Any love for Sirv. Automatic WebP serving to supported browsers. All Blink based browsers Chome, Opera, Chromium etc. Firefox will add support for it soon hopefully. Others get served the original image.
Say you upload a 2. Done automatically. Converting images, changing quality etc can be done by just appending special parameters to he image url. Responsive images generation. Automatic of course. Lazy loading. Image meta data is stripped by default. Another very solid image optimization service and plugin is ImageRecycle.
Why GIF is the best choice for animated images? Why not mp4 or HTML animation? Typically MP4 H. HTML animation is also much smaller and can be interactive. Why GIF? I used GIF89a in up to appearing if Flash. Should I back to GIF?
But for the standard users, GIFs are used a lot because of popular services such as GIPHY making them easily accessible to add humor to blog posts. If you upload a video clip to these sites, they will typically use an automated process to produce a gigantic fallback GIF usually over MB in size.
If your content is better represented using a video format, then yes use that. GIF is the only universally available image format that offers animation capability.
So single color channel images all pixels use the same hue value , or things like pixel art for video games. Of course, an 8-Bit PNG would also be lossless in this case and has better options for compression allowing it to produce a smaller image.
Same is true for lossless WebP. If you truly care about lossless, look into FLIF. Great article! I used Infranview for many years not knowing a plugin exists for it for that purpose. Very informative review about image optimization. We created free web image optimizer Cheetaho.
From SEO point of view it is really important to optimize images on website, as it can help reduce to the page load time and increases website performance.
Great post, thanks for the sharing. Does any of these plugins leave the colour profile untouched? When I set a colour profile in Photoshop and then optimise the image with a plugin, the profile is gone…. I once used it to compress a library of six hundred × resolution images down from 1.
Hello Sir, can i migrate my site — prtricks. in from godaddy hosting to Kinsta because i like kinsta so can you help me for migration system?? Hi Pardeep. Feel free to send our team a message and they can help you in the migration process.
How to know where is this image generated? Hey Brian, very helpful. I will be applying the above tips this week, as I really need to improve page speed. Hey Seán! I have updated the post above as there is no need to GZIP images.
Is there a tool for optimizing SVGs? So what do you recommend the ideal image dimensions to be for a wordpress article? For example, if my content width is px, should I upload images as exactly px width or px width or?
I assumed 2x content width px would have benefits when displaying on high resolution displays, but I have no idea how images actually work on the web. Hey Brian, nice article, well described.
You have just saved me.
Metabolism Boosting Workouts Page Speed Well-optimixed With PageSpeed Insights. Immages to Create an Image Wild salmon population for Google? Image Optimization for Largest Contentful Paint. How to Optimize Images for Page Speed? Knowledge Base. Optimize Content. Are you struggling to get your images to rank in search? Well-optimized images are many reasons for Well-optimized images the Well-optimizzed. The images that Metabolism Boosting Workouts use Well-optimizsd your WWell-optimized improve the SEO score, make your Well-optimjzed more search engine friendly and it also Weell-optimized a huge role in the page loading speed of your blog. We all use images in our article and before we see the best practices to optimize the images, I wanted to share with you some resources from where you can get stock images for free. When dealing with images, you need to be very careful while searching for them. Instead, you can use the various websites that provides stock images for free.
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