WPThumbs
Themes Plugins By purpose By industry Best-of lists Fix it guides

Best Free WordPress Plugins for Content Delivery

15 plugins compared · Updated August 2026 · CDN & Delivery

All 15 Free only Premium only

Choosing a WordPress plugin for content delivery comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. FluentSMTP Best overall 94/100
  2. 2. Smush 93/100
  3. 3. W3 Total Cache 91/100
  4. 4. Super Page Cache 91/100
  5. 5. WP Fastest Cache 89/100
  6. 6. SpeedyCache 89/100
  7. 7. Optimole 89/100
  8. 8. Simple CAPTCHA with Cloudflare Turnstile 88/100
  9. 9. Hummingbird Performance 88/100
  10. 10. NitroPack 86/100
  11. 11. LWS Optimize 85/100
  12. 12. Login Security Captcha 85/100
  13. 13. ShortPixel Adaptive Images 85/100
  14. 14. FastPixel Cache 83/100
  15. 15. Cloudflare 82/100
1 FluentSMTP
Best overall Free by WPManageNinja

FluentSMTP

Free WP Mail SMTP plugin - fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Cloudflare, Postmark, Brevo and any SMTP.

4.8★
from 400 ratings
600k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
94

WPScore

Read review View on WordPress.org
2 Smush
Free by WPMU DEV - Your All-in-One WordPress Platform

Smush

Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.

4.8★
from 6,051 ratings
1M+
active installs
Updated
Aug 2026
Tested to
WP 7.1
93

WPScore

Read review View on WordPress.org
3 W3 Total Cache
Free by BoldGrid

W3 Total Cache

Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Page, Minify, Object, Fragment, Database support.

4.4★
from 5,420 ratings
900k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
91

WPScore

Read review View on WordPress.org
4 Super Page Cache
Free by Optimole

Super Page Cache

Boost PageSpeed, SEO, and Core Web Vitals with full page caching, JS/CSS optimization, media optimization, and Cloudflare CDN.

4.8★
from 506 ratings
70k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
91

WPScore

Read review View on WordPress.org
6 SpeedyCache
Free by Softaculous

SpeedyCache

SpeedyCache is a WordPress cache plugin that helps you improve performance of your WordPress site by caching, minifying, and compressing your website.

4.4★
from 30 ratings
600k+
active installs
Updated
Jun 2026
Tested to
WP 7.0.4
89

WPScore

Read review View on WordPress.org
7 Optimole
Free by Optimole

Optimole

Automatically optimize images with bulk compression, lazy loading, WebP/AVIF conversion & CloudFront image CDN. Boost Core Web Vitals & conversions.

4.7★
from 638 ratings
200k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
89

WPScore

Read review View on WordPress.org
9 Hummingbird Performance
Free by WPMU DEV - Your All-in-One WordPress Platform

Hummingbird Performance

Optimize PageSpeed Performance & Core Web Vitals, Advanced Cache, Minify CSS & JavaScript, Inline Critical CSS, Defer CSS & JS, Smush & Lazy Load, CDN

4.7★
from 1,487 ratings
70k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
88

WPScore

Read review View on WordPress.org
10 NitroPack
Free by NitroPack

NitroPack

Boost site speed and performance with an all-in-one cache and speed optimization plugin. Pass Core Web Vitals with CDN, image optimization, lazy loadi …

4.3★
from 311 ratings
90k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
86

WPScore

Read review View on WordPress.org
11 LWS Optimize
Free by Aurélien LWS

LWS Optimize

All-in-one speed optimization: caching, WebP/AVIF, Critical CSS, lazy loading, CDN, and more. Instantly boost Core Web Vitals and site speed!

4.6★
from 9 ratings
20k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
85

WPScore

Read review View on WordPress.org
12 Login Security Captcha
Free by ScriptsTown

Login Security Captcha

Secure WordPress login, registration, and comment form with Google reCAPTCHA or Cloudflare Turnstile. Prevent Brute-force attacks and more.

4.9★
from 20 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
85

WPScore

Read review View on WordPress.org
13 ShortPixel Adaptive Images
Free by ShortPixel

ShortPixel Adaptive Images

Start serving properly sized, smart cropped & optimized images, plus CSS, JS and fonts from our CDN with a click; Automatic AVIF & WebP support.

4.8★
from 144 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
85

WPScore

Read review View on WordPress.org
14 FastPixel Cache
Free by ShortPixel

FastPixel Cache

Optimize Core Web Vitals and PageSpeed with advanced caching, image compression, lazy loading, critical CSS, and CDN – the ultimate performance tool.

4.8★
from 49 ratings
4k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
15 Cloudflare
Free by Cloudflare

Cloudflare

All of Cloudflare’s performance and security benefits in a simple one-click install.

3.5★
from 180 ratings
200k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
82

WPScore

Read review View on WordPress.org