A website sidebar is one of those things many people either ignore completely or overload with too many widgets. I see both problems regularly on WordPress websites.
Some sidebars end up filled with calendars, tag clouds, banners, social feeds, and random widgets that distract visitors from the actual content. Other websites remove the sidebar entirely without thinking about whether it could help users navigate the site more easily.
In most sites I build, the sidebar works best when it has a specific purpose. It should help visitors find related content, take action, or move through the website more efficiently. When used properly, a sidebar can improve usability, increase page views, and support SEO through better internal linking.
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Quick Answer
A WordPress sidebar is an area beside your main content where you can place widgets such as navigation menus, recent posts, search bars, calls to action, email signup forms, or advertisements.
You can create and customize a sidebar in WordPress by going to:
Appearance → Widgets
or by using the WordPress Site Editor or Customizer, depending on your theme.
The best sidebars are simple, useful, and relevant to the page content.
Why Website Sidebars Matter
A sidebar gives visitors another way to navigate your website without needing to return to the main menu.
On content-heavy websites, sidebars often help visitors discover additional articles, categories, or important pages. On business websites, they can support lead generation with newsletter forms, booking buttons, or contact links.
From an SEO perspective, sidebars also help strengthen internal linking across your website. A well-structured sidebar can help search engines discover important pages more efficiently.
That said, not every website needs a sidebar on every page. Sometimes a clean full-width layout works better, especially for landing pages or conversion-focused pages.
How to Create a Sidebar in WordPress
The exact process depends on your WordPress theme, but the general setup is usually similar.
Step 1: Check Whether Your Theme Includes a Sidebar
Most WordPress themes already include sidebar areas.
Go to:
Appearance → Widgets
If your theme supports sidebars, you will usually see areas such as:
- Main Sidebar
- Blog Sidebar
- Footer Sidebar
- Shop Sidebar
Some modern block themes may use the Site Editor instead.
If no sidebar areas exist, your theme may use full-width layouts by default.
Step 2: Open the Widgets Area
In classic themes:
Go to:
Appearance → Widgets
You can then drag widgets into the sidebar area.
In block themes:
Go to:
Appearance → Editor
Then open the template where you want the sidebar to appear.
Step 3: Add Useful Sidebar Widgets
Most websites only need a few sidebar elements.
I usually recommend starting with:
- Search bar
- Recent posts
- Categories
- Call-to-action button
- Newsletter signup form
Avoid adding too many widgets immediately. A crowded sidebar often reduces usability.
Useful Sidebar Elements for WordPress Websites
Search Bar
A search bar helps visitors quickly find content, especially on blog-heavy websites.
This works particularly well on websites with tutorials, guides, or large archives.
Recent Posts
Recent posts help visitors continue exploring your website.
This can reduce bounce rate and increase page views.
I usually recommend limiting this widget to about 5 posts so the sidebar stays clean.
Categories
Categories work well for websites with organized content sections.
For example, your website already separates content into areas like:
- WordPress Setup
- SEO
- Website Structure
- Ecommerce
- Website Marketing
Displaying these categories in the sidebar can help visitors move through related content more easily.
Email Signup Form
If your website focuses on lead generation, adding an email signup form in the sidebar can work well.
This is especially useful on blog posts where readers are already engaged with the content.
Call-to-Action Button
A sidebar CTA can direct visitors toward:
- Contact pages
- Booking pages
- Sales pages
- Lead magnets
- Resource libraries
Simple buttons usually work better than overly designed graphics.
How to Control Sidebar Placement
Many WordPress themes let you choose where sidebars appear.
Common options include:
- Right sidebar
- Left sidebar
- No sidebar
- Full-width layout
You can often change this in:
Appearance → Customize
or inside the page/post editor settings.
In my experience, right sidebars tend to work best because most users naturally read from left to right.
When to Use a Sidebar
Sidebars work best on:
- Blog posts
- Tutorial websites
- News websites
- Resource-heavy websites
- Documentation-style websites
They are less useful on:
- Landing pages
- Sales pages
- Checkout pages
- Minimal portfolio pages
For conversion-focused pages, removing distractions often improves results.
Practical Sidebar Tips
Keep the Sidebar Relevant
A sidebar should support the content on the page.
For example, on SEO articles, showing related SEO guides makes more sense than displaying unrelated WooCommerce content.
Avoid Too Many Widgets
One of the most common mistakes I see is trying to use the sidebar for everything.
Too many widgets can:
- Slow down the page
- Distract visitors
- Push useful content too far down
- Create visual clutter
I usually recommend keeping the sidebar limited to 3–5 important elements.
Test Mobile Layouts
Many sidebars move below the content on mobile devices.
Always check:
- Widget spacing
- Mobile readability
- Button sizes
- Form usability
A sidebar that looks fine on desktop can become messy on smaller screens.
Use Internal Links Strategically
Sidebar links can help strengthen important sections of your website. This works especially well when combined with a proper internal linking strategy for WordPress so visitors and search engines can discover related content more efficiently.
For example, linking to cornerstone guides or category pages can improve content discovery.
Common Sidebar Mistakes
Adding Too Many Ads
Excessive ads often reduce trust and make websites feel cluttered.
If you use advertisements, keep them balanced with actual useful content.
Using Irrelevant Widgets
Widgets should match the purpose of the website.
For example, music widgets or social feeds rarely help visitors on practical tutorial websites.
Ignoring Page Speed
Some sidebar widgets load external scripts that slow down the website. Google also recommends reducing unnecessary third-party scripts because they can affect loading performance and user experience. This web.dev guide on third-party JavaScript explains the impact in more detail.
This is common with:
- Social feeds
- Chat widgets
- Weather widgets
- Third-party ad systems
When I review slow WordPress sites, sidebar widgets are often part of the problem.
Duplicating the Main Navigation
The sidebar should complement the main menu, not repeat it entirely.
Instead of copying the whole navigation menu, focus on related content or secondary actions.
Sidebar vs Full-Width Layouts
A full-width layout can work better when you want visitors focused on one action.
For example:
- Landing pages
- Checkout pages
- Webinar registration pages
- Sales funnels
A sidebar layout usually works better for informational content where users may want additional navigation options.
Many modern WordPress websites use both approaches depending on the page type.
Conclusion
A good WordPress sidebar helps visitors navigate your website more easily without creating distractions.
The best sidebars stay simple and focused. They support the content, improve internal linking, and help visitors discover useful pages or take action.
For most websites, a clean sidebar with a few carefully selected widgets works far better than a crowded layout filled with unnecessary elements.
Etienne Basson works with website systems, SEO-driven site architecture, and technical implementation. He writes practical guides on building, structuring, and optimizing websites for long-term growth.