Description

Accelerate your website and improve SEO with Sirv – the most complete image CDN and media optimization plugin for WordPress & WooCommerce.

Automatically resize, compress and serve videos & images in next-gen formats, from Sirv’s fast CDN in 25 major cities.

Why is Sirv the best choice for WordPress image optimization?

Automatic optimization
Automatic scaled images
Automatic next-gen formats (AVIF & WebP)
Smaller files than any other WP optimization plugin
Incredibly fast CDN
Perfect on WooCommerce
Lazy loading

The best WordPress image optimizer – you don’t need to lift a finger. Just install the plugin and Sirv will automatically serve perfectly scaled and optimized images possible file-size. Every option is easily configured, if you wish to change the defaults.

Optimize your WordPress Media Library

Automatically optimize your existing WordPress media library images, without lifting a finger. Sirv can automatically copy your media library to Sirv, from where images will be served as highly optimized images across Sirv’s fast, global WordPress CDN (19 worldwide locations).

All these images (and more) can be automatically optimized by Sirv:

Media gallery images
Featured images
WooCommerce product & category images
Images added via other plugins or scripts
Images added via „Add Media“ button
CSS background images

Simply enable the Sirv CDN and images will sync to your Sirv account automatically.

See the complete list of features of Sirv’s fresh new take on media hosting and optimization.

Take your WooCommerce sales to another level

Optimization & CDN delivery of all your product images
Ultra-deep image zoom, 3D GLB models and 360-spin for your media viewer
Add image watermarks
Add text captions
Serves your files wherever you need them – websites, apps, feeds, social media, email campaigns

Image zoom

Sirv loves huge images – it can zoom deep inside them very fast. No matter how big, images load fast, just like zooming on a Google Map. The bigger your images, the more impressive this image zoom is – perfect if you have really high quality images.

Video streaming

Any video you upload to Sirv will be converted to different resolution video streams, for instant playback. Every user will receive the most optimal stream for their device, screen and network connection speed.

3D models (GLB and USDZ)

Upload your 3D models to Sirv and embed them in your web pages and product galleries. It’s easy and automated with Sirv Media Viewer. No coding needed. It also provides Augmented Reality (AR) automatically.

360 spin

Shoppers adore spinning products around to see them from all sides. If you’re selling something online, maybe with WooCommerce, Sirv provides a stunning 360-degree photography experience. Simply upload a set of photos and a 360 spin will be immediately ready to embed in your page. It feels incredible on desktop and mobile alike, especially the big full-screen 360 spin view.

Try demos.

Free and paid plans are available, depending on your needs. See „Price Plans“ below.

What our users say

★★★★★
„We’ve halved the load time on mobiles of a site that we had already done quite a bit of work on to get image sizes down.“ @martingfisher

★★★★★
„So far the best CDN plugin for WordPress. Please, never disappear!“ @mavenickster

★★★★★
„I was looking for a CDN fast and easy (no need to code)! Sirv is the best – Just upload your photos to your WordPress library and voilà “roulez jeunesse!!!” (French expression). Very good service!“ @disconance

★★★★★
„Sirv is fantastic! I have a lot of images on my website, and most of them are large, which resulted in slow site speeds, even with a CDN. What I love about Sirv is that they offer a CDN service, but also dynamically resize images based on the user’s browser/device, and serve the right file type. It has meant HUGE speed improvements on my website.“ @basellen

Optimal format (every time)

Google loves next-gen image formats for SEO, but it’s a pain to convert all your images and keep track of them. Sirv solves that. It automatically delivers images to each user in the most optimal format. Usually that’ll be AVIF or WebP and the filesize is dramatically smaller, so Google will reward you with better search ranking.

Sirv’s intelligence always serves the smallest possible file format to each users’ browser. It is 100% automatic. Plus, images are automatically scaled down to the suitable width/height and they’re lazy loaded, so you’ll really have the best possible image solution for WordPress.

Price plans

Sirv is a professional image hosting and WordPress CDN service. Most websites require a paid plan. Sirv also provides a free plan for light usage (500 MB storage and 2 GB monthly transfer).

Free 0.5 GB storage, $0/month
Business 5 GB storage, $19/month
Business 12 GB storage, $39/month
Business 20 GB storage, $59/month
Business 40 GB storage, $89/month
Business 60 GB storage, $119/month
Business 100 GB storage, $199/month
Enterprise: tailored to your needs – Contact us.

Create a Sirv account.

We believe in fair and transparent pricing:

Upgrade/downgrade any time.
Start/stop any time.
Complete and easy access to your images.
No credit card required for the Free plan.

Next steps…

7.1.3

Plugin tested with the latest WordPress version – 6.4.2.
Fixed minor security issue.
Added option to hide Sirv elements on the product edit page.
Improved the use of img srcset.
Fixed conflict with WPRocket JS file optimization.
Many small fixes and optimizations.

7.1.2

Added option to show/hide Sirv product image block.

7.1.1

Plugin tested with the latest WordPress version – 6.3.1.
Added ability to show Sirv variation image in WooCommerce cart and order confirmation emails.
Added ability to store in cache non-WordPress Sirv images. Previously they were marked as Failed.
Added Search button to the Add Sirv Media modal window.
Improved code for adding a Sirv product image on the WooCommerce product admin page.
Fixed issue for missing Sirv variation images.
Improved logic for parsing static content.
Small fixes and optimizations.

7.1.0

Improved static image parsing.
Fixed issue with showing Sirv images in WP admin.
Removed zoom option „mode=deep“ for custom galleries (shortcodes).
Small fixes and optimizations.

7.0.2

Fixed issue when uploading non image/video files.
Improved WooCommerce image block appearance if Sirv product image set.

7.0.1

Fixed issue with missing Sirv images.
Fixed issue when adding WooCommerce placeholder if only main image exists.

7.0.0

Added ability to use Sirv plugin to set main WooCommerce product image.
Added support to embed 3D models (GLB/glTF) in pages, posts & products.
Added new variant for Variation images and improved option’s logic.
Added ability to upload folders.
Added ability to sync videos to Sirv.
Improved the Order of content option for WooCommerce product gallery.
Added Spin image option for WooCommerce category settings.
Added ability to edit shortcodes for any item if gallery has different item types.
Many small fixes and optimizations.

6.9.3

Plugin tested with the latest WordPress version – 6.2.
Small style fixes for WordPress 6.2.
Improved how the plugin handles WooCommerce variation images.
Added support for jet-woo-builder categories.
Fix Divi theme issue with func et_disable_emojis_dns_prefetch.
Improved sync for files with unicode symbols.
Small improvements and optimizations.

6.9.2

Fixed issue with srcset.
Added support Sirv Media Viewer for WooCommerce for blocksy’s theme.

6.9.1

Fixed issue with undefined array key.

6.9.0

Added option to add classes to your Sirv product gallery container. Uses include copying classes from your previous WooCommerce gallery.
Improved WooCommerce product gallery for Sirv Media Viewer.
Improved logic for CSS background images.
Added automatic resync of modified images.
Improved static image parsing to synchronise more images to Sirv.
Improved security by adding 2FA field at login.
Improved captions for custom Sirv galleries (via shortcode) to permit tags in caption: „em“, „strong“, „b“, „i“, „br“, „a“.
Improved loading scripts for Elementor. Fixed deprecated warnings.
Many small fixes and optimizations.

6.8.4

Fixed issue with variations change.
Improved parse static images.
Added gallery module for sirv.js.
Improved login action.
Small fixes and optimizations.

6.8.3

Fixed issue with product gallery not properly showing.

6.8.2

Added option of smaller sirv.js version, for faster loading.
Improved WooCommerce product variations if variation has no images.
Improved HTML reports for image sync.
Improved error handling for login page.

6.8.1

Plugin tested with the latest WordPress version – 6.1.1.
Fixed some security issues
Improved crop option.
Improved Gallery placeholder option.
Small text fixes.

6.8.0

Plugin tested with the latest WordPress version – 6.1.
Added option to sync images requiring HTTP authentication.
Added option to bypass responsive image scaling via img attribute.
Added option to show Sirv Media Viewer galleries on WooCommerce categories (images, videos, 360 spins).
Added global options for Sirv Media Viewer shortcodes.
Improved logic when using WooCommerce variations.
Improved TTL cache logic.
Improved design of skeleton styles for product gallery.
Fixed issue when adding Vimeo videos to product gallery.
Improved captions for product gallery items.
Improved static images feature.
Improved error messages.
Fixed Elementor deprecated warning.
Many small fixes and optimizations.

6.7.1

Updated tested version.

6.7.0

Plugin tested with the latest WordPress version – 5.9.
Added new option to manage WordPress thumbnails – delete, regenerate and disable.
Added new option to pre-sync images to Sirv when uploaded to WordPress.
Added support for variation links, to generate product galleries with variation images by URL.
Improved reporting of images that failed to sync.
Small fixes and optimizations.

6.6.1

Added option to link image to a page URL or big image.
Improved custom domain option.
Improved CSS images parsing.
Improved Gutenberg support.
Small fixes and optimizations.

6.6.0

Added option to autodelete image from Sirv, if deleted from WP media library.
Improved user feedback during bulk synchronization.
Added new video options to the Add Sirv Media window.
Show text caption under WooCommerce images in fullscreen.
Improved sync error categorization.
Small improvements to Settings page.
Small fixes and optimizations.

6.5.1

Fixed issue with Class ‘SirvElementorWidget\getValue’ not found.

6.5.0

Plugin tested with the latest WordPress version – 5.8.
Added ability to rename folders within the Sirv Media Library (right-click).
Improved logic when renaming the primary Sirv synchronization folder, to avoid duplication.
Added Sirv shortcode to Avada builder.
Improved code when working with images requested by frontend Ajax.
Added „pinned thumbnail“ option in WooCommerce media gallery.
Added ability to order thumbnails in the WooCommerce media gallery.
Reworked lazy loading placeholder for better PageSpeed score.
Moved frontend styles and scripts inline, to improve PageSpeed score.
Many small fixes and improvements.

6.3.2

Fixed small issue with plugin folder.

6.3.1

Fixed small issue with plugin folder.

6.3.0

Added new TTL option to automatically clear product Sirv gallery cache.
Fixed issues with captions under images in product gallery.
Fixed issue with undefined getBoundingClientRect.
Improved CSS sync.
Removed some deprecated jQuery methods.
Style improvements for WooCommerce options.
Small fixes and optimizations.

6.2.1

Fixed issue with Undefined array key „spinHeight“.

6.2.0

Improved parsing to sync images missing an HTTP(S) protocol.
Improved CSS image sync feature.
Added ability to search in current folder.
Added width/height to responsive and static images, to prevent Cumulative Layout Shift.
Improved crop for Sirv images.
Added support for rich HTML text captions on galleries.
Added ability to show text captions under WooCommerce product galleries with Sirv Media Viewer.
Added option to show/hide Sirv Media Viewer product gallery skeleton.
Added spin height option when embedding 360 spin in page/post.
Added Sirv JS v3 spin options when embedding 360 spin in page/post.
Small fixes and improvements.

6.1.0

Added option to exclude files/folders from CDN sync.
Added mobile profile, to apply different product gallery settings on mobiles.
Added the hook „sirv_after_product_smv“ to mimic the hook „woocommerce_product_thumbnails“.
Added option to apply CSS styles to product galleries.
Removed sirv.js components.
Improved compatibility with WPBakery images.
Improved and optimized static image parsing.
Improved CSS background images feature.
Improved handling when frontend Ajax requests images.
Fixed issue with multiline caption in Sirv galleries.
Improved styling on the settings page.
Many small fixes and improvements.

6.0.0

Plugin tested with the latest WordPress version – 5.7.
Recommendation to switch to Sirv JS v3 from Sirv JS v2 before it is deprecated in 6 months.
Added new feature to sync CSS background images (beta) and serve them from CDN.
Various settings changes and optimizations.
Added styles to improve for WooCommerce layout of Sirv Media Viewer.
Added new image zoom option for WooCommerce gallery.
Added optimizations for WooCommerce product image gallery.
Added optimizations for faster content parsing.
Small fixes and optimizations.

5.8.0

Reduced size of plugin autoload options – may require reconnection of Sirv account.
Fixed style issues with responsive/static block in Gutenberg editor.
Fixed issue with max-width for responsive images.
Improved error message notifications.
Small fixes and improvements.

5.7.1

Merry Christmas dear users and a happy New Year!
Improved network status description.
Fixed issue with apostrophe in the Sirv library.
Fixed small issues with Sirv Media Viewer for WooCommerce.

5.7.0

Plugin tested with the latest WordPress version – 5.6.
WooCommerce product pages can now use content uploaded to Sirv and WordPress in parallel (in Sirv Media Viewer).
Visual improvements to the options page.
Added responsive grey placeholder. Gutenberg can now restore blocks with „Attempt Block Recovery“ function.
Added button in the Gutenberg right sidebar to edit shortcode settings.
Elementor improvements to JS scripts running when not needed.
Added fixes to help solve login problems.
Small fixes and optimizations.

5.6.9

Changed redirects to the account page.
Fixed issue with empty cdn url.

5.6.8

Fixed issue with embed sirv.js through http.
Fixed plugin version in changelog.

5.6.7

Fixed issue with Sirv Elementor widget.
Fixed issue with using multi custom domains.
Fixed small issues with the plugin menu pages.
Fixed rare issue with ‘divided by zero’ in stats.
Added checks when creating a new account.
Other small fixes.

5.6.6

Fixed issue with unable to insert Sirv Media into the Gutenberg editor.

5.6.5

Added option to choose sirv.js components.
Reworked options page layout.
Reduced blur overspill for blurred placeholder.
Added improvements for error messages on account login.
…

Screenshots

Responsive image gallery, with perfectly scaled images.
Zoom deep into images and swap between them.
Deep zoom, for big images.
Embed perfectly sized images, scaled on-the-fly to suit each user’s screen.
360 spin that is responsive, smooth and fast loading.
Create a free Sirv account: https://my.sirv.com/#/signup
Configure the plugin by pasting the S3 settings from https://my.sirv.com/account.
Enable the WordPress CDN plugin.
Synchronize your WordPress library with Sirv.
Check your stats to see how much storage and transfer you’re using.
Learn more about Sirv on the Help page.
Send your questions to Sirv’s expert support team.
Click the Add Sirv Media button to embed images in your page or post.
Choose the image(s) to embed in your page/post.
Choose how the image(s) should be displayed (static images, responsive images, 360 spin, image zoom or image gallery).
Your images/gallery will be shown in your post.
Click Preview to see how the images look in your page/post.
To upload images to your Sirv library, go to the Media Library page within the Sirv sub-menu (in the left navigation column).

Blocks

This plugin provides 1 block.

Sirv Media

Installation

Search for the Sirv plugin via the Plugins section of your WordPress dashboard.
Install and activate the plugin.
Go to the Settings page and copy/paste the S3 settings from this page of your Sirv account. You only need to do this once.

FAQ

Is Sirv free to try?

Yes. Create a free account and get 5 GB for 30 days. Then you continue on the Free plan with 500 MB storage + 2 GB bandwidth or choose from the pricing plans.

How do I enable next-gen image optimization?

WebP & AVIF are enabled by default. Sirv automatically serves your images in the best format for each users’ browser and screen. Usually AVIF or WebP are the smallest file-size, so you’ll get Google-recommended next-gen formats automatically, no matter what the original format was.

Can I serve images from my own domain name?

You can serve images from any domain or subdomain that you own. It comes free with any paid account. Just create a new CNAME record and your media will be optimized and served rapidly over HTTPS from Sirv. Follow this short tutorial.

Can I host other files, as well as images?

You can serve almost any file from your Sirv account. Use it as a WordPress CDN to deliver JS files, CSS files, text/CSV/XML files, PDFs, PSDs and more. Sirv is a complete CDN hosting solution for static files, with the best possible image optimization and delivery.

What happens to my original images if I disable the plugin?

Any images in your WordPress media library are safe, Sirv does not modify them. If you turn off our plugin, your site will keep working.

What makes Sirv stand out among other image optimization plugins?

You’ll achieve every media SEO best practice with Sirv. Next gen formats, scaled images, outstanding optimization, CDN delivery, lazy loading, alt tags. It is designed for videos, images, 3D models and 360 spins. It has a beautiful media viewer for single assets or galleries.

What formats does Sirv support?

JPEG, PNG, GIF, WebP, AVIF, APNG, HEIC and many more.

Is Sirv better than other WordPress image optimization plugins?

People tell us they prefer Sirv to other plugins (Smush, Cloudinary, ImgIX, Imagify, ShortPixel) because Sirv optimizes images smaller, has more features, is entirely automated and loads files faster anywhere in the world, thanks to Sirv’s CDN.

Can I use Sirv with Cloudflare?

Yes. Cloudflare and Sirv work perfectly together on the same site. Sirv will serve your images, Cloudflare will serve your other files.

The plugin doesn’t work with my theme

Sirv works instantly on 98% of WordPress sites. If Sirv doesn’t instantly work for you, we can usually resolve that within 24 hours (Mon-Fri). Just send us a message containing a login to your WordPress admin from our secure form and we’ll solve it ASAP.

Can I use Sirv with Elementor?

Yes, Sirv works with Elementor. The Sirv plugin automatically copies your Elementor images to your Sirv account. There’s also a button in Elementor to „Add Sirv Media“ to your pages.

Can I use Sirv with Divi?

Yes, Sirv works with Divi. It will automatically sync and serve your Divi images. You can also use the Add Sirv Media button to embed your Sirv library images into Divi pages.

Where can I learn more about using Sirv?

The official Sirv Help Center is full of easy advice, including:

How can I report security bugs?

You can report security bugs through the Patchstack Vulnerability Disclosure Program. The Patchstack team help validate, triage and handle any security vulnerabilities. Report a security vulnerability.

Reviews

georgemore22 7. April 2025.

Amazing Tool

winkler37 15. April 2025.

Prima product en werkt Responsive op alle formaten

uhecker 19. Januar 2025.

ok with me

14. Januar 2025.

Thanks a lot for your master service.

romankrejcikcom 13. Januar 2025.

Awesome module!

raju1989bddhaka 15. Novembar 2024.

good one

Read all 260 reviews

Contributors & Developers

“Image Optimizer, Resizer and CDN – Sirv” is open source software. The following people have contributed to this plugin.

Sirv CDN and Image Hosting

Translate “Image Optimizer, Resizer and CDN – Sirv” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

7.5.4 (2025-04-14)

Tested with the latest WordPress version 6.8.
Improved security for generating shortcodes.
Better detection of Sirv domains.
Improved option titles.
Minor improvements.

7.5.3 (2025-03-12)

Optimized „sirv“ field parsing for WooCommerce CSV product exports.
Removed unnecessary CSS from shortcodes.
Fixed some PHP errors and warnings.
Improved style of admin notifications.
Many small fixes and optimizations.

7.5.2 (2025-02-14)

Fixed an issue where Sirv Media Viewer could not be activated for category pages.
Optimized parsing logic for mass-synchronization of folders.
Small visual improvements to WooCommerce settings.

7.5.1 (2025-02-12)

Tested with the latest WordPress version 6.7.2.
Fixed issue with incorrect saving of „Folder name on Sirv“. Please check that your path is correct.
Improved calculation of total products in „Sirv content cache“ option.
Improved plugin settings page layout.

7.5.0 (2025-02-07)

Added option to use Sirv smart gallery to populate WooCommerce product media (before worked automatically). Enabled by default. If you don’t use it, please disable it for best optimization.
Added showing of Sirv product folder content on WooCommerce product admin pages.
Added option for mass sync of product folder .view files.
Optimized how .view files are used, to reduce requests.
Reduced database requests during image synchronization, for lower MySQL load.
Fixed issue when WooCommerce features may be enabled when WooCommerce is not installed.
Optimized the process of checking if image exists on Sirv when the placeholder image feature is enabled on the Sirv account.
Improved bounding errors.
Many small fixes and optimizations.

7.4.4 (2024-12-19)

Fixed an issue that could cause problems with some third-party plugin settings.
Improved cache creation.
Improved error reporting for caching items.
Improved text for 443 port error.

7.4.3 (2024-12-13)

Fixed issue with plugin affecting switching tabs for WooCommerce options etc.
Fixed an issue where the „Don’t show this again“ button for troubleshooting notice was not working properly.

7.4.2 (2024-12-11)

Potentially fixed issue with critical error when saving posts.
Fixed issue with not being able to add Sirv Media for product gallery.
Added annotation to prevent showing outdated templates for WooCoomerce status.

7.4.1 (2024-12-10)

Updated plugin description for WordPress plugin directory.

7.4.0 (2024-12-09)

Tested with the latest WordPress version 6.7.1.
New feature to apply product/variation image from Sirv, without uploading to WooCommerce. Now you can store all your media purely on Sirv.
Added instructions to resolve possible conflicts with third-party plugins.
Added support for Avada variations switcher.
Added support for Yoast SEO sitemaps to use Sirv main product image URL.
Small visual improvements for options.
Small fixes and improvements.

7.3.3 (2024-11-14)

Removed unnecessary requests that could slow down admin pages.

7.3.2 (2024-11-14)

Improved code to avoid get errors on customer plan load.

7.3.1 (2024-11-12)

Tested with the latest WordPress version 6.7.
Improved security for uploading large images.
Improved integration with WooCommerce variation images.
Improved detection of media uploaded to Sirv folders.
Improved loading of custom Sirv JS global options.
Improved design of the Synchronization tab.
Fixed issue with incorrect initialization of Advanced Editor Tools (TinyMCE plugin).
Many small fixes and optimizations.

7.3.0 (2024-10-03)

Improved plugin security.
Added sanitization of SVG files.
Fixed issue with missing Sirv data when product saved.
Added support for the Avada WooCommerce product block image gallery.
Added option to calculate WordPress Media library size.
Fixed caption for Sirv product galleries.
Small fixes and optimizations.

7.2.8

Plugin tested with the latest WordPress version 6.6.
Potentially fixed a warning for deprecated options.
Security fixes.
Small fixes and optimizations.

7.2.7

Plugin tested with the latest WordPress version 6.5.4.
Improved uploading for huge file-size images/videos.
Fixed issue with deprecated jQuery functions.
Small improvements for working with WooCommerce product image from Sirv.
Improved product gallery placeholder.
Small fixes and optimizations.

7.2.6

Fixed issue with unable to close plugin notice.
Fixed an issue with the sirv gallery not working when the Sirv Media button is hidden.
Fixed issue with static DB prefix.

7.2.5

Plugin tested with the latest WordPress version 6.5.
Added speed optimizations for „Parse static images“.
Fixed some issues with undefined keys/values.
Small fixes and optimizations.

7.2.4

Fixed issue with missed „Sirv product image“.

7.2.3

Enabled permission for more roles to use Add Sirv Media. Roles now include: SuperAdmin, Admin, Editor, Author and Contributor.
Improved product gallery skeleton placeholder.
Added option to view up to 100 items at a time on Shortcodes page.
Added ability to filter items in product gallery, using „sirv_pdp_gallery“. More information: https://sirv.com/help/articles/using-sirv-wordpress/#filter-items-in-the-product-gallery
Small fixes and optimizations.

7.2.2

Removed debug code.

7.2.1

Added fix for duplicate images in categories.
Improved work how Add Sirv Media works with the classic WordPress editor.
Added role checking for some actions to improve security. Usually only the roles Superadmin, Admin and Editor will be able to add, upload or edit Sirv content.
Added option to migrate images from the plugin WooCommerce Additional Variation Images to the Sirv product gallery.
Removed deprecated jQuery functions from the codebase.
Small fixes and optimizations.

7.2.0

Added category image profiles.
Improved experience of the Sirv media library.
Fixed issue of hidden folders with leading dot.
Improved how responsive images work.
Simplified design of synchronisation page.
Added option to stop sync process.
Improved some modal windows.
Improved error handling.
Removed the use of the S3 API.
Small fixes and optimizations.

7.1.5

Improved security checking.

7.1.4

Added link to Patchstack bug report program.