Formula04 Site Lock
Put a sitewide password on your site. Users must enter password before viewing content.
Consider an alternative
Formula04 Site Lock shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 3/5 and was last updated 9 years ago, and scores 27/100 on our health check.
- Small user base (10+ active installs)
- Low rating so far — 3/5 from only 6 reviews
- No update in 8 years
- Only tested up to WordPress 4.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Formula04 Site Lock stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| lock | >100 |
| password | >100 |
| Password Protect | >100 |
| Restrict access | >100 |
| security | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 3 from 6 reviews
About Formula04 Site Lock
From the official readme · v1.5.4Description
Very simple plug that allows you to put a password-protect the front end of your site. You can also white list pages so that they are still accessible without entering the site password. You can also set any page you want to be the \”enter your password\” screen. This is supposed to be a super simple plug, let me know if you want any features added.
Installation
After downloading the plugin HERE; install it by uploading it into your plugin directory or using the built in WordPress plugin installer.
After activation you will need to go to the Formula04 SiteLock settings page to set a few options.
Settings Page
Formula04 Site Lock Password
Here is where you set the password your visitors will need to enter in order to login.
Activate Formula04 Site Lock
This must be checked in order for Formula04 SiteLock to take effect.
White Listed Pages
These are the pages that will be uneffected by Formula04 SiteLock. Your users will be able to visit these pages whether they are logged in according to Formula04 SiteLock or not.
Formula04 Site Lock Label
This is the label that will appear directly above the password form.
Formula04 Site Lock Redirection Location–
This determines where a user will be redirected to if they try to view a non-whitelisted page without being logged in.
Note: *Whatever page you set this to, you will probably want to include the Formula04 SiteLock password form on it, so your users can log in.(See Usage).
Changelog
0.1
Very basic version just meant as a proof of concept
1.0
Moved plugin into a class, stripped tons of uneeded code.
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Formula04 Site Lock alternatives
All lock plugins →
FAQ
Formula04 Site Lock: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 10, 2026
Is Formula04 Site Lock free?
Yes. Formula04 Site Lock is free to download and use from the official WordPress.org plugin directory.
Is Formula04 Site Lock safe to use in 2026?
Formula04 Site Lock shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites, is rated 3/5 and was last updated 9 years ago, and scores 27/100 on our health check.
How many websites use Formula04 Site Lock?
Formula04 Site Lock is active on 10+ WordPress websites and has been downloaded 4,723 times since it launched in November 2014. It was downloaded 72 times in the last 30 days.
Does Formula04 Site Lock work with WordPress 7.1?
Formula04 Site Lock is officially tested up to WordPress 4.8.33, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
When was Formula04 Site Lock last updated?
The latest version, 1.5.4, was released on October 19, 2017 (9 years ago).
Who makes Formula04 Site Lock?
Formula04 Site Lock is developed and maintained by Verb_Form04.
What are the best alternatives to Formula04 Site Lock?
The most popular alternatives to Formula04 Site Lock are Post Lockdown (1K+ installs), Wbcom Designs (300+ installs) and Lock Your Updates Plugins/T… (300+ installs).
Powered by PageForge
Want thousands of pages that rank like these? Build them in an afternoon.
This directory runs on the same engine as PageForge. Turn any spreadsheet, CSV or API into thousands of fast, SEO-ready WordPress pages — with schema, internal links and AI-written copy baked in.
- CSV, Google Sheets & API data sources
- AI content, schema & internal links per page
- Works with Elementor, Gutenberg, Yoast & Rank Math
- Free on WordPress.org — no credit card
