Slim SEO Review – A Lightweight SEO Plugin with Setup Guide

In this Slim SEO review and setup guide, we are going to address everything related to the plugin that mainly focuses on ON-Page SEO.

The name itself is sufficient to know about the plugin i.e. Slim SEO is a lightweight plugin which is around 40 KB in size that automates your SEO works.

Moreover, in this guide, you will learn

  • What is Slim SEO?
  • How does it work?
  • Slim SEO Settings
  • Setup Guide.
  • Slim SEO vs Insert Headers and Footer Plugin
  • So on …
Slim SEO Review

What is Slim SEO?

Slim SEO is a WordPress plugin, alternative to Yoast, Rank Math, All in One SEO Pack, SEO framework.

The plugin is developed by elightup, a company behind Metabox and Greta Themes. It is a lightweight SEO plugin under 40 KB with no configuration required.

Reasons to use Slim SEO

Currently, I am using Yoast SEO plugin in my blog and I might soon change to Slim SEO due to the following reasons.

  • Zero Configuration: Simply Install Slim SEO and forget it.
  • Super Lightweight: Slim SEO plugin is under 40 KB.
  • High-Quality code.
  • Automate SEO Work.
  • An SEO plugin that is not bloated.
  • Built and optimize with performance in mind.
  • Free to use.
  • Inbuilt header/footer code meta box.

Check Out: Create Facebook App ID for Yoast and Rank Math?

How to Install Slim SEO plugin?

Installing Slim SEO plugin is same as installing other plugins.

  • Go to your Dashboard.
  • Go to Plugins > Add New.
  • Search Slim SEO.
  • Install and Activate the plugin.

Another way of installing the plugin


Slim SEO has 10,000+ active installations with an average rating of 4.8/5 and it is compatible with the latest version of the WordPress version.

Tran Ngoc Tuan Anh, the Founder, Developer, and CEO of eLightUp company is active in the support forum, solving the users queries/problem.

You can ask questions related to the Slim SEO support forum at


Another part to look after of this SEO plugin is the documentation section.

The documentation section covers all the things related to the plugin including code snippets.

You can get documentation from installation to the troubleshooting of the plugin.

Setting Page

First go to Settings and then click on Slim SEO, you will be redirected to setting page.

  • General: In general settings, you get the header, body, footer meta box where you can insert code in the respective area.
  • Homepage: In Homepage settings, you can set Meta Title, Meta Description, Image for Facebook, and Twitter while sharing the homepage URL.
  • Tools: If you are using another SEO plugin then you can migrate to Slim SEO using Tools settings. It offers migration from Yoast, All in One SEO Pack, SEO Framework.

Setup Guide & Settings – Slim SEO Review

Here are different settings and setup guide for Slim SEO WordPress plugin.

Meta Title Tag

Meta Title is a title that appears in Search Engine Result Pages (SERPs). Normally, your main title is a meta title but you can override using Meta Title Tag available in Slim SEO meta box just below your post or page.

Always write meta title less than equal to 60 characters, otherwise, Google normally truncates title after 60 characters.

Slim SEO metabox

Meta Description Tag

Nowadays, Google automatically chooses the relevant meta description from the article itself but using the Meta Description tag, you can override description.

Always write meta description less than equal to 160 characters.

Meta Robots Tag

By Default, Slim SEO exclude following from search results:

404 page, Search results pages, Private singular posts/pages, Empty page/post, Empty categories/tags, RSS Feed.

Moreover, you can manually disable your written post or page from the meta box available in each post/page.

Facebook Open Graph Tags

Open Graph also known as OG tags helps to show featured images, meta title sharing articles on Facebook.

Twitter Card Tags

It helps to show your blog posts images, title while sharing to Twitter.

Auto Redirection

Auto Redirection features help to redirect the attachment page to the attachment file URL and if the website has only one Author then it automatically redirects the author page to the homepage if needed.

RSS Feed

Before using RSS feed, you need to set a feed setting to the summary. Go to Settings > Reading > For each post in a feed, include as Summary.

Slim SEO automatically adds a link of your website when someone tries to copy your content via RSS Feed.


Slim SEO has integrated JSON-LD schema that supports various types of global Schemas which are output in the single script tag in the footer of the website.


You can enable breadcrumbs using [slim_seo_breadcrumbs] shortcode.

Image Alt Text

Alt text aka Alternative Text is one of the SEO factors. If you miss to insert alt text in the images then Slim SEO automatically insert alt text from attachment title.

XML Sitemap

Slim SEO automatically generates an XML sitemap of your website. Since WordPress 5.5 version, by default, it generates XML sitemap.

Here Slim SEO disables core WordPress sitemap and uses the plugin sitemap functionality to avoid conflict.

Disable Features:

One of the important parts in Slim SEO is Disable Features. You can disable any features that you don’t want to use from the plugin. Such as Auto Redirection, Schema, header/footer code, etc.

Also Read: Add FAQ Schema in WordPress


The plugin is not old in the market as compared to Yoast but it is powerful that automates your SEO works.

Slim SEO supports an open graph protocol but doesn’t have any dedicated placement to insert Facebook App ID. I would like to have the dedicated box but you can use the header/footer meta box to place the code.

Moreover, you can use the header code meta box to insert Google Tag Manager, Facebook Pixel, Google Analytics, and various other scripts. This feature helps to avoid the plugin like Insert Headers and Footers.

I hope you know more by reading Slim SEO Review and Setup guide. If you are looking for a lightweight alternative to Yoast and Rank Math then give a try to this plugin.

Also, don’t forget to check the documentation part and if you have any queries then feel free to comment below.


I am obsessed with WordPress and write articles about WordPress Speed Optimization, SEO, and Blogging. I mostly publish tutorials on GeneratePress, Astra, Kadence, and GenerateBlocks.

7 thoughts on “Slim SEO Review – A Lightweight SEO Plugin with Setup Guide”

    • Hi Sara, First Go to Elements > Add New > Choose Hook.
      Add a title and copy and paste the Slim SEO shortcodes [slim_seo_breadcrumbs]
      Now go to hook settings and choose Hook as generate_before_entry_title, Check on Execute Shortcodes.
      Go to Display Rules and choose location as Posts -> All Posts.

      Also Read: How to Add Breadcrumbs in GeneratePress


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  2. I accidently visited on your site and I didn’t know about seo slim plugin but in future I would like to use it on main site So again thanks for you to remind me for this value able seo plugin 5 star

    • Hi Subodh,
      I haven’t tried Slim SEO lately.
      So, can’t say anything about it.

      Please let me know the result if you are going to try it.



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