> ## Documentation Index
> Fetch the complete documentation index at: https://docs.landerlab.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Global Blocks in LanderLab: Build Once, Update Everywhere
> Learn what global blocks are in LanderLab and how to reuse navbars, footers, and CTAs across every landing page. Edit once and update all pages instantly.
Global blocks let you build a block one time and reuse it across as many landing pages as you want. Because the block stays global, any change you make to the original updates every page it appears on automatically. There is no need to edit each page by hand.
Global blocks stay connected across pages. Editing the original updates every copy instantly. This is different from saving a section as a component, where each copy is independent and changes are not shared.
## What are global blocks?
A global block is a reusable block, like a navbar or footer, that you design once and place on multiple pages. Every instance points back to the same source, so the content, links, and styling stay in sync everywhere.
When you update the source block, for example changing a link in your navbar, that update applies to every page that uses it. You never have to open each page and change it manually.
## Why use global blocks
* **Edit once, update everywhere.** Change a link or a line of text in one place and every page updates automatically.
* **Consistency across pages.** Navigation, links, and messaging stay identical on every landing page.
* **Faster workflow.** Reuse the same building blocks instead of rebuilding or copy-pasting them for each new page.
* **Fewer mistakes.** One source of truth means no broken or outdated links left behind on older pages.
## Common use cases
Global blocks work best for anything that should look and behave the same across every page.
**Navigation and structure**
* **Navbar.** Keep the same menu, logo, and links on every page. Update one link and it changes everywhere.
* **Footer.** Maintain consistent contact details, social links, and legal links across your whole site.
**For media buyers and performance marketers**
* **Offer CTA blocks.** Reuse the same call-to-action section across a campaign. When you rotate or swap an offer, update the link once and every landing page points to the new offer instantly.
* **Compliance and legal blocks.** Keep advertiser disclosures, privacy links, and terms consistent across every page. When a network or regulation requires a wording change, update it in one place.
* **Promo and announcement bars.** Run the same limited-time offer or announcement across all pages, then update or remove it everywhere at once when the promotion ends.
* **Trust blocks.** Reuse testimonial rows, review badges, or partner logos so every page in a funnel carries the same social proof.
For affiliate and paid traffic campaigns, put your offer link inside a global block. Swapping offers later becomes a one-click change across every page instead of a manual edit on each lander.
Editing a global block changes it on every page where it appears. If you need a one-off version for a single page, use a regular saved component instead so your change stays local to that page.