WordPress Block vs. Classic Themes

WordPress Block Themes Offer Performance and SEO Win for Small Business Owners

If you’ve been using WordPress for a while, you’ve likely witnessed some degree of transformation to your workflow. Wordpress, originally a simple blogging platform, has grown into a robust content management system capable of powering everything from personal blogs to enterprise websites. The Gutenberg Project that began in 2018 has evolved into a rich “site editor” experience in which anyone can build beautiful websites (relatively) easily. The site editor can dramatically improve your content creation workflow and provide more “no-code” flexibility to you as a site owner or content creator.

What Are WordPress Themes?

Themes are the foundation of your WordPress site’s visual identity. They define essential visual elements like your color palette, typography choices, and layouts for various content types. Your theme will establish the look and feel that makes your website uniquely yours, setting the tone for your brand’s online presence.

Classic themes: a traditional approach

How Classic Themes Work

For many years, WordPress themes followed a traditional development model. Before the block editor arrived on the scene, all theme templates and parts were written primarily in PHP, with supporting CSS and HTML. This technical foundation allowed developers to create dynamic, full-featured websites but came with significant limitations for non-developers.

If you wanted to make structural changes to your site—even something as seemingly simple as updating your logo or rearranging elements in your header—you typically needed to call a developer.

Page builder frameworks: power tools or performance pitfalls?

In response to these limitations, builder frameworks emerged as a popular solution. These tools promised the ability to build sophisticated websites through visual interfaces, liberating non-technical users from their dependence on developers. With the ability to click and drag elements onto your pages, creating complex layouts “without writing a single line of code” became possible (to a degree).

But, we all know that magic has a cost. Many builder frameworks:

• Created “div sandwiches” (layers upon layers of nested divs) that resulted in messy, inefficient code. This could make your website harder to maintain and potentially slower to load – and make it harder for Google to get to your content.
• Introduced accessibility issues by not using semantic HTML or not having testing methods in place for keyboard or voice controls. This not only affected users with disabilities but could also impact your SEO and legal compliance.
• Added unnecessary features in an attempt to appeal to everyone, creating bloated sites with poor performance. These “kitchen sink” approaches often included dozens of features you’d never use but that still consumed resources.
• Sat on top of core WordPress rather than integrating with it, adding extra processing layers that could slow down your site and complicate updates.

Block themes: the modern approach

Better No-Code Site Building

Block themes represent a fundamental shift in how WordPress sites are built and managed. Block themes embrace a visual, component-based approach that puts a lot of creative control back in the hands of content creators.

With WordPress block themes, you can build and customize your entire site directly in the Site Editor. The entire experience—from designing navigation menus to crafting templates for custom post types—leverages core WordPress blocks through an intuitive visual interface.

This democratization of web design means that you can experiment, iterate, and launch new designs quickly, with much more autonomy*.

*There are still considerations around accessibility and functionality that may require a custom block or plugin. Built-in checks in the editor are pretty good at alerting you to common issues such as poor contrast between text and background colors or skipped headings (when you view your page in outline mode). I do recommend the Accessibility Checker plugin by Equalize Digital to help you identify and fix accessibility errors. And, please – never, ever use an accessibility overlay.

How block themes make WordPress management easier for non-technical business owners

For small business owners, the traditional WordPress development cycle often meant expensive developer retainers or settling for a website that couldn’t evolve with your business. Block themes eliminate this frustration by putting you in control of your most important digital asset.

Greater control, less dependance on custom code

Using block themes enables you to incorporate sophisticated site elements that would typically require developer intervention in classic themes. Want to customize how search results appear on your site? You can do that. Need to create a more helpful and branded “404 Page Not Found” experience? That’s within your reach too. Considering a global update to your headers and footers across dozens or hundreds of pages? With block themes, these changes can be made quickly and consistently without writing or editing code.

The modern architecture of block themes delivers tangible performance benefits through more efficient code and smarter resource management. The conditional asset loading approach means your site only loads what it needs for each page, rather than burdening visitors with unnecessary resources. This translates to faster load times and a more responsive user experience—factors that influence everything from visitor satisfaction to search engine rankings.

Perhaps most importantly, working with a block themes represents an investment in future-proofing your digital presence. WordPress core development is clearly focused on expanding and enhancing the block architecture. By embracing this approach now, you position your website to seamlessly adopt new features and capabilities as they emerge.

WordPress Classic Theme Limitations

Even when using the block editor with classic themes:

• Not all block properties will be available (unless specifically enabled)
• There’s no front to backend visual parity: the page editor appears as a white page with black text, disconnected from your site’s design (unless you enable site editor styles and pursue a hybrid approach)

WordPress Block Theme Advantages

Block themes offer:

• A seamless visual experience between editing content and the results you see on your live site
• Enhanced design options for dynamic content (like the Query Loop block)
• Automatic reflection of your design choices (fonts, colors, styles) in the editor and on the frontend of your website
• More engaging, dynamic page layouts possible without developer assistance
• Ability to load custom, branded patterns for use throughout your website for more consistent design even when you have multiple editors (to be fair, you can do this in classic themes also – block themes take it a bit further with the ability to create theme specific section styles and settings)

By reducing dependence on developer assistance for routine website updates, block themes can significantly lower the total cost of website ownership for small businesses, allowing you to allocate resources to other critical areas of your operation.

Should your small business switch to a block theme?

Short answer: If you’ve been considering a website update or rebrand in the next 6 months – YES, ask your developer about block themes.

Making the transition from classic to block themes is a significant decision. While both block and classic themes can perform well with proper optimization strategies like effective caching and image compression, block themes offer compelling advantages that are becoming increasingly difficult to ignore.

The significant performance gains alone would make a compelling case, but when combined with the potential for reduced design and development time and greater flexibility for content creators and site owners, the argument for block theme development becomes even stronger.

Block themes represent not only the future of WordPress, but its present reality. By adopting this approach now, you ensure your site can take full advantage of current capabilities while also being able to implement future improvements as they’re released.

Block By Block: How Small Business Websites Gain a Competitive Edge with Block Themes

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