Title: Next Rocket Launch Tracker
Author: catherdercam
Published: <strong>August 27, 2026</strong>
Last modified: August 27, 2026

---

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# Next Rocket Launch Tracker

 By [catherdercam](https://profiles.wordpress.org/catherdercam/)

[Download](https://downloads.wordpress.org/plugin/next-rocket-launch-tracker.1.1.7.zip)

 * [Details](https://wordpress.org/plugins/next-rocket-launch-tracker/#description)
 * [Reviews](https://wordpress.org/plugins/next-rocket-launch-tracker/#reviews)
 *  [Installation](https://wordpress.org/plugins/next-rocket-launch-tracker/#installation)
 * [Development](https://wordpress.org/plugins/next-rocket-launch-tracker/#developers)

 [Support](https://wordpress.org/support/plugin/next-rocket-launch-tracker/)

## Description

Next Rocket Launch Tracker adds a `[nextrlt_next_launch]` shortcode that displays
upcoming rocket launches, pulled from The Space Devs’ free Launch Library 2 API.
Point it at any launch site (or all of them), pick how much detail to show, and 
drop it into a post, page, or widget area.

**Features**

 * `[nextrlt_next_launch]` shortcode with attributes for location, launch count,
   layout, color theme, and which fields to show (image, countdown, provider, pad,
   orbit, status, description).
 * Three layouts (card, list, compact), each with an optional slider mode that shows
   one launch at a time with prev/next arrows.
 * Optional light or dark color theme that forces a matching card background, independent
   of the surrounding page or the visitor’s OS preference.
 * A visual Shortcode Builder screen (Settings > Next Rocket Launch Tracker Builder)
   with toggle switches, dropdowns, and a live-updating shortcode preview you can
   copy with one click.
 * A searchable, multi-select location picker backed by the live API, pre-populated
   with the most active launch sites.
 * An Elementor widget (search for “Next Rocket Launch Tracker” in the widget panel)
   with the same options as the shortcode, for sites that build pages with Elementor.
 * Launches never call the API during a normal page view: a WP-Cron job refreshes
   a cached copy on a schedule you control, and the last good response is served
   if the API is ever unreachable or rate-limited.
 * Automatically filters out launches the upstream API still lists as “upcoming”
   moments after they’ve already flown.

#### Where the data comes from

Launch data is provided by [The Space Devs’ Launch Library 2 API](https://ll.thespacedevs.com/),
a free, public, community-funded API. This plugin is not affiliated with The Space
Devs. See “External services” below for what this plugin sends and when.

### External services

This plugin connects to The Space Devs’ Launch Library 2 API to retrieve upcoming
launch data and launch-site names.

 * **Service:** The Space Devs Launch Library 2 (`https://ll.thespacedevs.com`),
   or `https://lldev.thespacedevs.com` if the “development endpoint” option is turned
   on in Settings > Next Rocket Launch Tracker.
 * **What is sent:** only the numeric launch-location IDs configured in the shortcode/
   settings, and any text an administrator types into the location search box on
   the Settings or Shortcode Builder screens. No visitor data, personal information,
   or site content is ever transmitted.
 * **When it’s sent:** on a background WP-Cron schedule (hourly by default, configurable)
   to refresh the cached launch list, and on-demand when an administrator uses the
   location search. The API is never called while a visitor is viewing a page.
 * **Terms of Service:** [github.com/TheSpaceDevs/Tutorials](https://github.com/TheSpaceDevs/Tutorials/blob/main/faqs/faq_TSD.md).
   Review their terms before relying on this plugin for a production site; the API
   is funded through Patreon and a credit link is appreciated.
 * **Privacy Policy:** [thespacedevs.com/privacy](https://thespacedevs.com/privacy)

### Development

Found a bug or want to contribute? The source is on GitHub: [github.com/CatHerderCam/Next-Rocket-Launch-Tracker](https://github.com/CatHerderCam/Next-Rocket-Launch-Tracker).

## Installation

 1. Take a backup of your site first.
 2. Upload the plugin through Plugins > Add New > Upload Plugin, or upload the `next-
    rocket-launch-tracker` folder to `wp-content/plugins/`.
 3. Activate the plugin.
 4. Go to Settings > Next Rocket Launch Tracker to set default locations, and Settings
    > Next Rocket Launch Tracker Builder to build a shortcode visually.
 5. Place `[nextrlt_next_launch]` (or a customized version of it) into any post, page,
    or widget area that supports shortcodes.

## FAQ

### How do I find a launch site’s location ID?

Use the search box on the Settings > Next Rocket Launch Tracker screen, or the location
picker on Settings > Next Rocket Launch Tracker Builder — both query the live API
and show real IDs. Don’t guess; Cape Canaveral SFS and Kennedy Space Center, for
example, are separate locations with separate IDs.

### Will this slow down my site or get me rate-limited?

No. The plugin never calls the API on a normal page view. A WP-Cron job refreshes
a cached copy on a schedule you control (15 minutes minimum), and the last good 
response is served if the API is ever down or rate-limited.

### What happens if the API is unreachable?

Visitors see the last successfully cached data instead of an empty box. Only if 
there has never been a successful response does the shortcode fall back to its configurable“
empty” message. Errors are written to the debug log when `WP_DEBUG` is on, never
shown to visitors.

### Can I make it match my site’s dark or light design?

Yes. The `theme` attribute (or the “Color surface” option in the Shortcode Builder)
accepts `auto` (blends into the page, follows the visitor’s OS preference), `light`,
or `dark`. The bundled CSS also exposes custom properties (`--nextrlt-border`, `--
nextrlt-muted`, `--nextrlt-go`, and others) for deeper theme integration, or you
can disable the bundled stylesheet entirely in Settings.

### Does the slider work without JavaScript?

Yes. Without JavaScript the launches simply stack vertically like the non-slider
layouts, so nothing traps a visitor on a single item.

### Does this work with Elementor?

Yes. If Elementor is active, a “Next Rocket Launch Tracker” widget appears in the
widget panel (search for it, or find it under the Next Rocket Launch Tracker category)
with the same options as the shortcode.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Next Rocket Launch Tracker” is open source software. The following people have 
contributed to this plugin.

Contributors

 *   [ catherdercam ](https://profiles.wordpress.org/catherdercam/)

[Translate “Next Rocket Launch Tracker” into your language.](https://translate.wordpress.org/projects/wp-plugins/next-rocket-launch-tracker)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/next-rocket-launch-tracker/),
check out the [SVN repository](https://plugins.svn.wordpress.org/next-rocket-launch-tracker/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/next-rocket-launch-tracker/)
by [RSS](https://plugins.trac.wordpress.org/log/next-rocket-launch-tracker/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.1.7

 * Added: `Plugin URI` header and a `== Development ==` readme section linking to
   the GitHub repository.

#### 1.1.6

 * Changed: every function, class, option, hook, nonce, shortcode tag, CSS class,
   and file name now uses the `nextrlt` prefix (was `sdnl`), per WordPress.org plugin
   review feedback about unique naming.
 * Changed: the shortcode tag is now `[nextrlt_next_launch]` (was `[next_launch]`)
   so it carries a unique prefix too.
 * Fixed: the location-search script on Settings > Next Rocket Launch Tracker is
   now loaded with `wp_enqueue_script()` instead of being printed inline.
 * Changed: the readme’s External services section now links directly to the Launch
   Library 2 API’s terms of service and privacy policy.
 * Fixed: WordPress Coding Standards (PHPCS/WPCS) issues — missing docblocks, array
   formatting, and the reserved word `default` used as a parameter name.

#### 1.1.5

 * Changed: plugin renamed from “Next Launch” to “Next Rocket Launch Tracker” (slug
   and text domain now `next-rocket-launch-tracker`), per WordPress.org plugin review
   naming/trademark feedback.

#### 1.1.4

 * Added: a Next Launch widget for Elementor, with the same options as the `[next_launch]`
   shortcode. Only loads on sites that have Elementor active.

#### 1.1.3

 * Changed: plugin header author updated to `catherdercam`; removed the `Plugin 
   URI` header.
 * Fixed: a zip-packaging issue where the plugin’s main file could be extracted 
   with an incorrect path, causing header detection to fail.

#### 1.1.2

 * Changed: plugin name shortened from “SpaceDevs Next Launch” to “Next Launch” 
   to match the plugin slug and text domain.

#### 1.1.1

 * Fixed: the plugin folder and main file were renamed from `spacedevs-next-launch`
   to `next-launch` to match the plugin’s slug and text domain.

#### 1.1.0

 * Added: a visual Shortcode Builder admin screen with toggle switches, dropdowns,
   and a live, copyable shortcode preview.
 * Added: a searchable, multi-select location picker backed by the live API.
 * Added: `theme` attribute (`auto` / `light` / `dark`) for a forced light or dark
   card background.
 * Added: `slider` attribute — shows one launch at a time with prev/next arrows,
   compatible with all three layouts.
 * Fixed: the location-search API endpoint was pointed at a path that returned a
   404 on the current API version; location search now works.
 * Fixed: the “upcoming” launch list could briefly keep showing a launch for hours
   after it had already flown; results are now filtered by status before display.
 * Fixed: a box-sizing issue that could misalign slider frames by the width of their
   padding and border.

#### 1.0.0

 * Initial release: `[next_launch]` shortcode, settings screen with location search,
   WP-Cron-backed caching with stale-response fallback.

## Meta

 *  Version **1.1.7**
 *  Last updated **17 hours ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.8 or higher **
 *  Tested up to **7.1**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [countdown](https://wordpress.org/plugins/tags/countdown/)[shortcode](https://wordpress.org/plugins/tags/shortcode/)
   [spacex](https://wordpress.org/plugins/tags/spacex/)[widget](https://wordpress.org/plugins/tags/widget/)
 *  [Advanced View](https://wordpress.org/plugins/next-rocket-launch-tracker/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/next-rocket-launch-tracker/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/next-rocket-launch-tracker/reviews/)

## Contributors

 *   [ catherdercam ](https://profiles.wordpress.org/catherdercam/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/next-rocket-launch-tracker/)