Title: Form Spammer Trap for Comments
Author: Rick Hellewell
Published: <strong>Mukutulansanja 4, 2015</strong>
Last modified: Mugulansigo 2, 2022

---

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![](https://ps.w.org/formspammertrap-for-comments/assets/banner-772x250.png?rev=
2687863)

This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://ps.w.org/formspammertrap-for-comments/assets/icon-256x256.png?rev=2687863)

# Form Spammer Trap for Comments

 By [Rick Hellewell](https://profiles.wordpress.org/rhellewellgmailcom/)

[Download](https://downloads.wordpress.org/plugin/formspammertrap-for-comments.zip)

 * [Details](https://lug.wordpress.org/plugins/formspammertrap-for-comments/#description)
 * [Reviews](https://lug.wordpress.org/plugins/formspammertrap-for-comments/#reviews)
 *  [Installation](https://lug.wordpress.org/plugins/formspammertrap-for-comments/#installation)
 * [Development](https://lug.wordpress.org/plugins/formspammertrap-for-comments/#developers)

 [Support](https://wordpress.org/support/plugin/formspammertrap-for-comments/)

## Description

FormSpammerTrap For Comments adds form spam bot blocking to your comment form, and
the comment processing code. We catch comment spam before it gets to your database.
It senses human interaction with the comment form. It does not require those irritating
captchas, hidden fields, silly questions, CSS tricks, or other annoying things others
use to try to (but fail to) block spam-bots.
 The FormSpammerTrap for Comments plugin
provides several options to change the text of various parts of the comment form,
such as the title of the comment form, the submit button, and more. You can also
set the text used for the Reply link, and even include the name of the commenter
in that Reply link. If a spam-bot tries to submit a comment, even when they bypass
your comment form with non-browser tricks (think CURL), they will be sent to our
FormSpammerTrap page, and you will not see the spam-bot comment on your system. (
Although that makes it harder to know that FormSpammerTrap is working.) The plugin
catches comment spam _before_ it gets into your database, so other plugins (like
Akismet) don’t have to spend time checking each comment. And you don’t have to keep
on cleaning out spam comments from your database on the administrative Comment screen.

You will find more information at our FormSpammerTrap web site. We also have solutions
for WordPress contact forms and custom-built sites. You can contact us with any 
questions or issues on that site.

## Screenshots

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## Installation

This section describes how to install the plugin and get it working.

 1. Download the zip file, uncompress, then upload to `/wp-content/plugins/` directory.
    Or download, then upload/install via the Add Plugin page.
 2. Activate the plugin through the ‘Plugins’ menu in WordPress.
 3. Change settings in Settings, ‘FormSpammerTrap for Comments Settings’ to your requirements.

 * Note: do a “Save” on the FormSpammerTrap for Comments Settings page once after
   an upgrade to ensure all is well; your settings will be preserved.

## FAQ

### How do you block spam bots?

We use a technique that looks for human interaction with the comment form. The name,
email, and comment text area plus other required fields are all checked for this
human interaction.

### What happens to a spam bot filling out the form, or submitting form data via an automated process?

The spam bot is redirected to our FormSpammerTrap page at www.FormSpammerTrap.com.
The comment is essentially ‘thrown away’; it isn’t added to your posts’ comment.
Your site doesn’t even see the submission, which might reduce the load on a busy
site.

### But can’t I block comment spam with (take your pick: captchas, hidden fields, CSS tricks, silly questions, whatever)?

Those techniques just don’t work with modern spam-bots. Captchas are easily bypassed.
Hidden fields are not hidden to the smarter spam bots, neither are CSS tricks that
hide a field from display. And silly questions are just irritating.

Our technique requires a human to interact with the form. Form spamming bots can’t
provide that interaction. And without that human interaction, submitting the form
sends the submitter to our FormSpammerTrap.com site. The comment is never saved.
So you don’t see the form spam.

### Does the technique also work with Contact Us forms?

No, it is only for comments. But we have a free solution on our FormSpammerTrap.
com web site that will apply the same techniques to Contact Us forms. It is easy
to implement; it’s just a template that should work with the theme you are using.

### Are there things on my site that will not work with this plugin?

Perhaps. Any plugin that modifies the comment form might interfere with our technique.
If you have problems, you can temporarily disable our plugin, or the other comment
form plugin, and see if the problem re-occurs.

Also, some themes are not well-behaved, and might cause problems.

For instance, we have noticed that some themes are doing goofy (non-standard) things
with the comment form code, so if required fields are empty when you submit, you
get a ‘fill in this field’ message for a required field rather than getting redirected
to the FormSpammerTrap.com site. Nothing we can do about themes that don’t follow
good WordPress coding practices. But our plugin doesn’t interfere with those themes.
And a form spammer will still be sent to the FormSpammerTrap.com web site.

We have verified that it works properly with the WordPress “Twenty-” themes, plus
several others. Let us know if you have other themes where it isn’t working properly.

The plugin does do some jquery stuff to try to insert the trapping techniques into
the comment form. This may allow the plugin to work on many themes that might not
stricly follow coding best practices.

### When I activate the plugin, submitting a comment always redirects to the FormSpammerTrap site. Why?

As stated above, some themes don’t follow proper WordPress coding standards as it
relates to supporting changes to the comment form. Because our plugin uses standard
WordPress functions to add functionality to the comment form, these themes ignore
that standard coding and build their own forms.

You can verify this by temporarily changing your theme to one that follows WordPress
standards, like the TwentyFifteen theme. If the comment form works properly, then
you know that the theme is at fault, not our plugin. If the form still doesn’t work
with the TwentyFifteen theme, then let us know.

The current version of our plugin does bypass some improper theme code as it relates
to comment forms.

### What about limiting the number of URLs in a comment?

Our plugin does that too. Most comment form spammers will try to put lots of links
in the comment. You can partially block that with the settings in the Discussion
menu. We take it a step farther by letting you determine the number of URLs you 
want in a comment. The plugin then removes or overwrites the excess URLs from the
comment.

### What if I want something that shows when excess URLs are deleted?

The plugin provides for that also. You can determine if the excess URLs are deleted,
or if they are replaced with ‘[URL Redacted]’ text.

### What about changing the text that shows before and after the comment form?

The plugin provides that also. In the FST4c Settings screen (under the Settings 
menu), you can enter the text that will be displayed before and after the comment
form. We don’t allow any formatting of that text, to prevent any security problems.
Note that a logged-in user won’t see the ‘before the comment’ text; this is a limitation
in the WordPress core code.

### Anything else?

We’ve added some new features that allow you to change the text for the comment 
form, submit button, and more. There are also some tweaks you can enable to allow
for how some themes display the comment form. Everything is in the settings screen.

### But what if I want the default text to show before and after comments?

The plugin allows for that. Just leave those fields blank on the plugins’ settings
screen.

### What about the error message when a required field is not filled out?

The plugin shows the error message (such as “Please fill out required field (name)”)
while re-displaying the comment form, with the fields showing the data previously
entered. The visitor can just fill in the required fields, and submit again.

### What if I don’t like how the plugin changes things?

You can just deactivate the plugin. Your settings will be saved if you want to reactivate
later.

### Does the plugin make changes to the database?

The plugin only adds one ‘row’ to the Options database, using standard WordPress
functions. The plugin will read the values as needed, minimizing calls to the database
to limit any overhead against the database.

### Does the plugin require anything extra on the client (visitor) browser?

Not that we are aware of. The things we do are done through standard WordPress calls,
plus one bit of “DOM” access, which all modern browsers support. There should be
no effect of the plugin on how the visitor interacts with your site. The visitor
will not have to have Javascript installed (which is not a good idea in most cases).
It works with the standard ‘jQuery’ code that WordPress already includes and uses.

### Where can we go for support if there is a problem or question – or a new feature we think will be nifty?

You can use the plugin support page for questions. Or you can contact us directly
via the Contact Us page at www.FormSpammerTrap.com . We usually respond within 24
hours (and are usually faster than that).

### How much does the plugin cost?

It’s free, as is the Contact Us form template available on the http://www.FormSpammerTrap.
com site. But there is a place to donate there, if you are so inclined. (And we 
will appreciate that inclination!)

### What else do you do?

We do lots of WordPress sites: implementation, customization, and more. You can 
find more info at our business site at www.CellarWeb.com .

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Form Spammer Trap for Comments” is open source software. The following people have
contributed to this plugin.

Contributors

 *   [ Rick Hellewell ](https://profiles.wordpress.org/rhellewellgmailcom/)

[Translate “Form Spammer Trap for Comments” into your language.](https://translate.wordpress.org/projects/wp-plugins/formspammertrap-for-comments)

### Interested in development?

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

## Changelog

#### 4.0 (released xx FEB 2022)

 * Changed all function calls to have prefix of ‘fst4c’ to reduce chance of collision
   with other plugins
 * Changed PHP requirements to be at least 7.4 .
 * Changed WP requirement to be at least 5.0 (but latest version is better).
 * Changed the order of the settings fields so they are more ‘top to bottom’.
 * Changed size of input fields from 30 to 45.
 * Added a description to each setting (to the right of the setting field.
 * Fixed the way that the form action is changed to https://www.formspammertrap.
   com if the ‘set bogus action’ option enabled. The form action is changed back
   to normal on a onclick/onfocus of a required field.
 * Added a little spacing between the “Required” text in front of a field, if the
   field is required.
 * Fixed the ‘reply to’ text if the ‘Add the comment author’s name to the Reply 
   link text’ setting is enabled; now shows ‘Reply to’ plus the comment author name(
   in quotes).
 * Recaptcha script added just befor close body tag, instead of in head tag.
 * Improved session starting – new session only if session does not exist.
 * Re-wrote the informational text at the top of the Settings page.
 * Correction to how the form ‘action’ parameter is set and changed.
 * Added more screenshots to show settings and the results of those settings on 
   the comment area.
 * Changes to the visual look of the Settings page to match our other plugins.
 * Additional information about our other plugins added to the sidebar.
 * Updated logo and other Asset images to current CellarWeb branding.
 * Minor changes to the “Donate” button.
 * Minor CSS changes to the settings page.
 * Minor spelling corrections.
 * Added link to the CellarWeb contact page at the bottom of the settings screen.

#### 3.01 (released 4 Mar 2020)

 * minor changes; correction to fix repository issues

#### 3.00 (released 2 Mar 2020)

 * changes to how array elements are specified to prevent future errors, in preparation
   for additional features.

#### 2.20 (released 6 July 2018)

 * added an optional reCaptcha box – the ‘I am not a robot’ box – that will display
   as needed. You will need your own reCaptcha key; the link is on the settings 
   screen.
 * added CSS file for Settings page CSS.
 * removed deprecated screen_icon function
 * some minor text changes on the Settings screen
 * added an info box on the Settings screens about our other plugins
 * re-coded the Settings input area to reduce the use of tables by not using the
   WP do_settings() function.

#### 2.11 (released 21 Feb 2017)

 * added an empty H2 tag above the Settings header for any WP messages
 * minor code efficiencies

#### 2.10 (released 29 Dec 2016)

 * changed the text fields allowed length from 30 to 50 characters.
 * changed the header graphic/information.
 * updated the icons used on the WordPress plugin pages.
 * changes to text/info on the Settings screen.
 * added additional screenshots to show all of the current settings
 * tested with WP 4.7.2

#### 2.00 / 2.01

 * released 25 Jan 2015
 * added these new customization text areas; see details about each item on the 
   Settings screen
    ** text to display after the closing form tag ** text to display
   if comments are closed ** text just before the closing form tag (after the submit
   button) ** text above the entire comment form ** text just under the ‘Leave a
   Reply’ comment area heading ** text just after the ‘must login in’ text but above
   all the form fields ** text just above the comment message box only if you are
   logged in (does not display if not logged in)
 * code efficiencies to reduce number of calls to options database and others
 * minor style and text changes to Settings screen
 * Settings screen logo change
 * Tested with WP 4.4.1

#### 1.08

 * released 25 Aug 2015
 * enhancement of the WP ‘nonce’ value to make it more effective, and compatible
   with other plugins
 * testing to ensure compability with WP version 4.3
 * minor changes to readme.txt file
 * better removal of the ‘URL’ field on comments

#### 1.07

 * released 30 Jul 2015
 * testing to ensure compatability with WP version 4.2.3; should work just fine 
   with 4.3

#### 1.06a

 * released 25 Jul 2015
 * Don’t you hate it when you think you fixed everything, and another bug sneaks
   in, even after you did lots of testing? Me to. Which is why there is a 1.06a 
   right after the 1.06. Sigh.

#### 1.06

 * released 25 Jul 2015
 * fixed bug where the name/email fields would be truncated into the ‘label’ area
   if you selected the ‘wrap required’ function
 * added option to add commenter’s name to the Reply link text
 * added option to show (or not) the ‘allowed HTML code’ text under the comment 
   text box
 * added option to remove all HTML tags from all fields
 * added option to change the Reply To text
 * added option to change the Cancel Reply text
 * more code efficiencies

#### 1.05

 * released 6 Mar 2015
 * fixed an obscure problem that caused improper redirecting on some versions of
   Internet Explorer.
 * more code efficiencies; only loads comment-related code on pages that have comments
   enabled and not closed. This makes non-comment pages load faster.
 * other code efficiencies for faster page loads (all pages).
 * added a random string to the function that helps recognize humans so that a hacker
   can’t analyze the code to get around that important function – it always changes!

#### 1.04

 * released 22 Feb 2015 =
 * added additional checking for spambot submissions when the form is bypassed; 
   if found, off they go to the www.FormSpammerTrap site (with a ‘die’ for good 
   measure).
 * added some ‘nonce’ checking to the comment form; if the correct ‘nonce’ is not
   found, off they go to the www.FormSpammerTrap site (with a ‘die’ for good measure).
 * the above two enhancements help keep comments out of your database, catching 
   them before other plugins like Akismet analyze them. The result is that you don’t
   have to keep cleaning out your spam comments.
 * removed the URL field from the comment form (the URL field causes more problems
   than needed – spammers like that field, so we take it away).
 * added a link on the All Plugins list page to get to the plugin’s Settings page,
   plus changed the name of the Settings page.
 * some additional information on the description area of the Settings page.
 * some minor code optimization and cleanup.
 * fixed typos and added clarification and additional to some items in the Readme
   file.
 * more code optimization and cleanup
 * save the settings once after upgrading versions

#### 1.03 (20 Feb 2015)

 * added an option to change the text inside the Submit button
 * added an option to change the “Reply to” link text
 * added and option to change the “Cancel Reply” link text.
 * added an option to chang the “Leave a Reply” text above the comment form area.
 * added additional information about each setting on the Settings screen

#### 1.02 (17 Feb 2015)

 * Sometimes code cleanup introduces a new problem (sigh). Fixed that new problem.

#### 1.01 (16 Feb 2015)

 * Fixed bug causing submit button to be misplaced away from the comment area with
   threaded comments due to an errant closing div.
 * added additional explanatory text to all fields on the settings page.
 * added a new checkbox to put the ‘required’ text on a separate line in the label
   area next to the input fields. Some themes have a narrow label area which would
   not display the full ‘required’ text in the field label, so you would enable 
   this new checkbox. Note that not all themes put a label next to the comment form
   input fields.
 * added a new checkbox to change the ‘Reply’ link text to ‘Reply to ‘, where is
   the name associated with the comment. So a comment from ‘Rick H.’ will have a
   reply link of ‘Reply to Rick H.’ (it uses the full name from the author field
   of the logged in user). Leave blank to use the standard ‘Reply’ link text. Note
   that some themes many not support this option.
 * some code cleanup and efficiencies.
 * format tweaking for the readme.txt file to make it a bit more readable (and to
   comply with best practices).

#### 1.0

 * Initial release (1 Feb 2015)

## Meta

 *  Version **4.00**
 *  Last updated **4 emyaka ago**
 *  Active installations **10+**
 *  WordPress version ** 4.6 or higher **
 *  Tested up to **5.9.13**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/formspammertrap-for-comments/)
 * Tags
 * [comments](https://lug.wordpress.org/plugins/tags/comments/)[form spam](https://lug.wordpress.org/plugins/tags/form-spam/)
   [spam](https://lug.wordpress.org/plugins/tags/spam/)[stop](https://lug.wordpress.org/plugins/tags/stop/)
 *  [Advanced View](https://lug.wordpress.org/plugins/formspammertrap-for-comments/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/formspammertrap-for-comments/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/formspammertrap-for-comments/reviews/)

## Contributors

 *   [ Rick Hellewell ](https://profiles.wordpress.org/rhellewellgmailcom/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/formspammertrap-for-comments/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](http://www.FormSpammerTrap.com/)