Title: LeTDK
Author: 老蒋和他的小伙伴
Published: June 17, 2026
Last modified: June 18, 2026
---
Search plugins
# LeTDK
By [老蒋和他的小伙伴](https://profiles.wordpress.org/laobuluo/)
[Download](https://downloads.wordpress.org/plugin/letdk.1.1.1.zip)
* [Details](https://wordpress.org/plugins/letdk/#description)
* [Reviews](https://wordpress.org/plugins/letdk/#reviews)
* [Installation](https://wordpress.org/plugins/letdk/#installation)
* [Development](https://wordpress.org/plugins/letdk/#developers)
[Support](https://wordpress.org/support/plugin/letdk/)
## Description
LeTDK helps you manage your site’s TDK (Title, Description, Keywords) from a simple
settings screen—no heavy SEO suite required.
**Features**
* **Homepage TDK** — Custom homepage title, description, keywords, and title separator
* **Category TDK** — SEO fields on category add/edit screens; falls back to the
category name or description when empty
* **Post TDK** — SEO meta box on posts; falls back to the post title or trimmed
content when empty
* **Document title** — Uses `pre_get_document_title` for front-end `` output
* **Meta tags** — Outputs `description` and optional `keywords`
* **Social sharing (Open Graph)** — Optional Open Graph and Twitter Card tags with
a default share image
* **Robots meta** — Optional control for archive indexing and robots directives
* **Master switch** — Disable all front-end SEO output from this plugin when needed
**Highlights**
* Settings live under **Settings LeTDK**
* Dependent fields hide when the master switch is off
* Keyword input converts Chinese commas to English commas
* Homepage title (60) and description (160) length checks support UTF-8 when mbstring
is available
* Uninstall removes plugin options via `uninstall.php`
**Note**
If you already use a full SEO plugin, avoid duplicate meta tags—enable only one
plugin to control titles and meta output.
This plugin is developed by **Lezaiyun Studio** and maintained by LaoJiang.
🔗 Official product page: [https://www.lezaiyun.com/letdk.html](https://www.lezaiyun.com/letdk.html)
👤 Developer Blog: [https://www.laojiang.me](https://www.laojiang.me)
## Screenshots
[⌊LeTDK settings page — homepage TDK and feature toggles⌉⌊LeTDK settings page —
homepage TDK and feature toggles⌉[
LeTDK settings page — homepage TDK and feature toggles
[⌊Post editor — SEO meta box⌉⌊Post editor — SEO meta box⌉[
Post editor — SEO meta box
[⌊Category editor — SEO fields⌉⌊Category editor — SEO fields⌉[
Category editor — SEO fields
## Installation
#### Automatic installation
1. In your WordPress admin, go to **Plugins Add New**
2. Search for **LeTDK**
3. Click **Install Now**, then **Activate**
#### Manual installation
1. Upload the `letdk` folder to `/wp-content/plugins/`
2. Activate the plugin on the **Plugins** screen
3. Open **Settings LeTDK**
#### Initial setup
1. Enable **TDK optimization**
2. Set homepage title, description, and keywords (use commas between keywords)
3. Optionally enable category TDK, post TDK, social meta tags, and robots meta
4. Click **Save Changes**
## FAQ
### The page title does not change after I enable LeTDK
Make sure **TDK optimization** is checked. If another SEO plugin also controls titles,
disable one of them to avoid conflicts.
### I do not see SEO fields on categories or posts
Enable **Category TDK** and/or **Post TDK** on the LeTDK settings page. Category
fields appear on **Posts Categories**; post fields appear in the **SEO settings**
meta box when editing a post.
### What keyword format should I use?
Use comma-separated keywords, for example: `WordPress,SEO,plugin`. Chinese commas
entered in the admin are converted to English commas automatically.
### How does the default social share image work?
After you enable **Social sharing tags (OG Meta)**, single posts use the featured
image when available; otherwise the default image from settings is used.
### Does uninstalling remove all data?
Uninstalling deletes the `letdk_options` site option. Custom SEO post meta and term
meta are kept so your content data is not lost.
### What PHP version is required?
PHP 7.4 or newer.
## Reviews
There are no reviews for this plugin.
## Contributors & Developers
“LeTDK” is open source software. The following people have contributed to this plugin.
Contributors
* [ 老蒋和他的小伙伴 ](https://profiles.wordpress.org/laobuluo/)
[Translate “LeTDK” into your language.](https://translate.wordpress.org/projects/wp-plugins/letdk)
### Interested in development?
[Browse the code](https://plugins.trac.wordpress.org/browser/letdk/), check out
the [SVN repository](https://plugins.svn.wordpress.org/letdk/), or subscribe to
the [development log](https://plugins.trac.wordpress.org/log/letdk/) by [RSS](https://plugins.trac.wordpress.org/log/letdk/?limit=100&mode=stop_on_copy&format=rss).
## Changelog
#### 1.1.1
* WordPress.org review: English readme and plugin header description
* Security: sanitize and unslash nonce and POST inputs; escape admin output with
esc_html_e / esc_attr_e
* Settings: restrict title_separator to allowed values; register_setting type array
* Removed load_plugin_textdomain (WordPress.org handles translations)
* Settings menu moved under Settings LeTDK
#### 1.1.0
* Fix: pass site name to admin JS via wp_localize_script
* Fix: robots meta noindex/index conflict
* Fix: textdomain path and loading timing
* Perf: load admin assets only on the settings page; cache options per request
* UTF-8 length validation for homepage title and description
* Standard uninstall.php
#### 1.0.0
* Initial release
## Meta
* Version **1.1.1**
* Last updated **10 hours ago**
* Active installations **Fewer than 10**
* WordPress version ** 5.8 or higher **
* Tested up to **7.0**
* PHP version ** 7.4 or higher **
* Tags
* [description](https://wordpress.org/plugins/tags/description/)[meta tags](https://wordpress.org/plugins/tags/meta-tags/)
[open graph](https://wordpress.org/plugins/tags/open-graph/)[seo](https://wordpress.org/plugins/tags/seo/)
[title](https://wordpress.org/plugins/tags/title/)
* [Advanced View](https://wordpress.org/plugins/letdk/advanced/)
## Ratings
No reviews have been submitted yet.
[Your review](https://wordpress.org/support/plugin/letdk/reviews/#new-post)
[See all reviews](https://wordpress.org/support/plugin/letdk/reviews/)
## Contributors
* [ 老蒋和他的小伙伴 ](https://profiles.wordpress.org/laobuluo/)
## Support
Got something to say? Need help?
[View support forum](https://wordpress.org/support/plugin/letdk/)
## Donate
Would you like to support the advancement of this plugin?
[ Donate to this plugin ](https://www.lezaiyun.com/donate/)