Switching WordPress themes without losing rankings

In brief

• Switching a themeTheme The design package that determines the appearance of a WordPress site.More about this term affects what Google reads: headings, titles, internal linksInternal link An internal link is a link from one page on your site to another page on the same site. This is a link that you have complete control over yourself.More about this term, structured dataStructured data Additional information in the code that tells search engines and AI exactly what is on a page.More about this term and load time.
• Measure before you switch, build in a separate staging environment and compare against the baseline measurementBaseline Measurement The measurement of the initial situation before any changes are implemented.More about this term.
• A theme switch can be done from and to Divi, Elementor, Astra or a block theme, as well as from Divi 4 to Divi 5.
• A theme switch falls under the Website MigrationMigration A migration is the process of moving a website to a new system, a new server, or a new address.More about this term service; pricing is on enquiry.
• If you only want to adjust a colour or typeface, there is no need to switch.

When you switch WordPressWordPress The world's most widely used system for building and managing websites.More about this term themes, your pages, posts and media remain in WordPress. What the theme itself provided will change or disappear: page layouts, header and footer, menu locations, theme settings, custom CSS stored in the theme, and any functions bundled with the theme. Those functions cause the most issues because you cannot see them directly.

If you used a page builder, the layout is stored within that builder. Elementor saves layouts as JSON (developers.elementor.com, 12 November 2026). Divi 4 and Divi 5 store layouts differently; see the section on Divi 4 to Divi 5 below.

In most cases, text and images carry over, and the layout is rebuilt in the new theme or page builder.

• From Divi to standard WordPress blocks: the migration process with two practical tests is covered in Divi to Gutenberg.
• From Divi 4 to Divi 5: see the next section.
• From another page builder to Divi: the layout is rebuilt in Divi and is stored in Divi from then on. Divi costs $89 a year or $249 as a one-off payment (Elegant Themes, 6 November 2026); if you cancel the annual plan, updates and support lapse.
• To a block theme: the layout is converted into standard WordPress blocks. Twenty Twenty-Four and Twenty Twenty-Five are free block themes in the WordPress.org theme directory (12 November 2026).
• To Astra: the theme is available for free in the theme directory; Astra Pro is optional, priced at $99 a year as an introductory offer, then $149 a year, for up to 3 sites (wpastra.com, 12 November 2026). The page builder you use alongside it determines where the layout is stored.

Which theme suits your situation is explained in Best WordPress theme? Divi, Elementor, Astra and block themes compared.

Divi 4 stores components as shortcode within the page. Divi 5 uses storage similar to WordPress blocks. Divi includes a button to migrate from Divi 4 to Divi 5, and until everything is converted, Divi 5 runs the legacy components in a fallback mode. Switching from Divi 4 to Divi 5 requires the same approach as any theme switch: baseline measurement, separate staging environment, and comparing against the baseline measurement. It falls under the Website Migration service and pricing is on enquiry. Divi 5 suits those who want to keep tweaking layout and design themselves; I build in it for clients who want that.

A new theme can alter what Google reads in five areas.

• Headings: the new theme places the page titleMetadata Information about a page that is not displayed on the page itself, such as the title and description shown by Google.More about this term in a different heading levelHeading Structure The organisation of titles and subheadings on a page, ranging from H1 to H2 and H3.More about this term, or a page ends up with two H1s or none at all.
• Titles and descriptions: these sometimes originate from the theme rather than an SEO plugin.
• Internal links: a menu that is not set up in the new location leaves some of your pages without internal links.
• Structured data and breadcrumbs: these sometimes come from the theme and then disappear unnoticed.
• Load time and layout shifts: a heavier theme or images loading in different positionsPosition Your position is the place your website holds in the search results for a specific keyword. Position 1 is the top organic result.More about this term make the page slower or less stable.

You only know whether a theme alters any of these five points if you measure before and after.

These are the first four steps for a WordPress theme switch.

1. Baseline measurement. Record the current state of the site beforehand. The items to log: all URLs, titles, headings, rankings, traffic and load time.
2. Separate environment. Build and test the new site in an environment hidden from visitors and Google, while your current site stays online.
3. Content unchanged. Copy carries over word for word. The new theme changes the presentation, not the text itself.
4. Rebuilding components. Anything that existed solely in the old theme, such as header and footer, forms, sliders and reusable blocks, must be rebuilt.