4 Ways To Optimize Images For WordPress

Dezember 3, 2014 3 mins to read
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The first method in this series on making WordPress load faster by reducing image file sizes. I’ll show you 4 methods to optimize images for WordPress. You might already know that loading speed is crucial for high rankings in search engines, that’s exactly why I’m starting this series with optimizing images for SEO.

As you can see in my Google PageSpeed report, I can speed up my website especially on mobile devices by reducing image file sizes.

optimize images for WordPress

Reducing the file sizes of your images is quite important, because big image files slow down websites drastically. All fast websites have in common that their images are highly optimized.

I’ve explored several ways to optimize images in WordPress blogs, 4 of which I’m about to share with you.

You’ll get a view behind the scenes of my blog. I’m going to show you how I’m optimizing the images on my own websites – so that you can adapt the methods for your own site.

In the video I show you two WordPress plugins and two free online services which optimize your images for SEO.

On my website I’m using the service Kraken.io, which is the best image optimization service I’ve ever came across. If you’re looking for the ultimate (yet affordable) solution, Kraken.io is your best choice.

The free alternative to Kraken.io is WP Smush.It. It’s a well known plugin and runs on almost one million blogs.

You can install both plugins directly from the WordPress plugin repository, yet the Kraken.io plugin will require an API key to work.

Both plugins reduce image file sizes on-the-fly, directly when you upload a new image. They can also optimize all existing images in the media library at once – which might take some time depending on the number of images.

When you want to optimize one image at a time, you can use the free optimization tool of Kraken.io, or Picresize.com. I’ll show you how to use both tools in the video.

BONUS TIP:

Pay close attention to the resolution of the images you upload. You don’t need to upload an image that’s 1,500 pixel wide if it’s just displayed in the sidebar. Make sure that the images are only as big as they need to be.

You can use professional tools like Photoshop or free tools like Gimp, Paint (not my preferred choice) or Picresize.com.

Now it’s your turn! You know what you need to do to reduce image sizes on your blog. If you haven’t already, feel free to go ahead and optimize your own images! I’d love to hear the results of your site speed in the comments 🙂

12 Comments on “4 Ways To Optimize Images For WordPress”

  1. Michael M Moshiri
    Dezember 4, 2014

    Great tips Jan. Definitely going to try Kraken.io and Smush.it and see which does better for a mix of JPG and PNG files…

    1. Thanks Michael!
      Keep us posted on your decision 🙂

  2. Michael M Moshiri
    Dezember 4, 2014

    Great tips Jan. Definitely going to try Kraken.io and Smush.it and see which does better for a mix of JPG and PNG files…

    1. Thanks Michael!
      Keep us posted on your decision 🙂

  3. Mike Peters
    März 10, 2015

    Just found out TinyPNG have also released an WordPress plugin to compress JPEG and PNG images on upload. Be nice to know which of these plugins does the best job for WordPress, though I guess Smush.it is getting a bit outdated and no new development.

    1. Hey Mike,
      thanks for sharing these news!
      I haven’t checked TinyPNG yet, but for my Kraken.io has the best results in compression/quality.

      Best!

  4. Mike Peters
    März 10, 2015

    Just found out TinyPNG have also released an WordPress plugin to compress JPEG and PNG images on upload. Be nice to know which of these plugins does the best job for WordPress, though I guess Smush.it is getting a bit outdated and no new development.

    1. Hey Mike,
      thanks for sharing these news!
      I haven’t checked TinyPNG yet, but for my Kraken.io has the best results in compression/quality.

      Best!

  5. Somehow image optimization just does not work for beauty blogs it seems.. I have checked so many sites and most of them face the same problem. .. May be its because we have too many images (clicked personally and not taken from the net) and we edit them manually using picasa or other such tools… I had tried using Smush.it but it just did not seem of any help, finally activated the Ewww Image optimizer… this one improved things slightly but nothing major..

    1. I think beauty blogs are predestined to optimize their images. It’s important to upload them in proper dimensions and a resolution no higher than 72 DPI. I saw the best results in optimizing file sizes from the service http://kraken.io, but I didn’t include them because they’re paid.

      Oh, and if you run a beauty blog, you might like this post as well: http://jkoch.me/wordpress-retina-ready/

      Thanks for stopping by!

  6. Somehow image optimization just does not work for beauty blogs it seems.. I have checked so many sites and most of them face the same problem. .. May be its because we have too many images (clicked personally and not taken from the net) and we edit them manually using picasa or other such tools… I had tried using Smush.it but it just did not seem of any help, finally activated the Ewww Image optimizer… this one improved things slightly but nothing major..

    1. I think beauty blogs are predestined to optimize their images. It’s important to upload them in proper dimensions and a resolution no higher than 72 DPI. I saw the best results in optimizing file sizes from the service http://kraken.io, but I didn’t include them because they’re paid.

      Oh, and if you run a beauty blog, you might like this post as well: http://jkoch.me/wordpress-retina-ready/

      Thanks for stopping by!

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