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Duplicate Killer – Prevent Duplicate Form Submissions

开发者 wpnia
更新时间 2026年3月9日 08:05
捐献地址: 去捐款
PHP版本: 5.6.20 及以上
WordPress版本: 6.9
版权: GPLv2 or later
版权网址: 版权信息

标签

woocommerce contact form 7 elementor forms duplicate orders duplicate submissions

下载

1.2.3 1.1.0 1.5.3 1.4.3 1.3.0 1.2.1 1.1.4 1.2.2 1.4.5 1.0.0 1.1.1 1.1.6 1.1.9 1.2.0 1.1.5 1.1.7 1.1.8 1.4.0 1.3.1 1.4.6 1.4.7 1.4.8 1.4.9 1.4.4 1.5.0 1.5.1 1.5.2

详情介绍:

Duplicate Killer – Block Duplicate Form Submissions in WordPress.

安装:

  1. Install Duplicate Killer from the WordPress Plugins screen or upload it to /wp-content/plugins/.
  2. Activate the plugin from the Plugins menu.
  3. Open Duplicate Killer from your WordPress admin dashboard.
  4. Select your form plugin and choose which fields must be unique.

屏幕截图:

  • Plugin settings – prevent duplicate form submissions in WordPress
  • Block repeat submissions from the same user using browser cookies
  • Display total form entries on the frontend using a shortcode
  • Works with popular WordPress form plugins

升级注意事项:

1.5.3 New: Cross-Form Duplicate Protection added to Duplicate Killer PRO. Detect duplicate submissions across multiple forms.

常见问题:

Does this plugin block bots or spam?

Duplicate Killer focuses on preventing duplicate form submissions and entries. It works alongside spam or CAPTCHA plugins and does not replace them.

Will this slow down my site?

No. Duplicate Killer performs lightweight database checks only on form submission and has no impact on frontend performance.

Why should I use Duplicate Killer?

Duplicate Killer prevents duplicate emails and repeated form submissions, helping you keep your leads and contact data clean.

Does Duplicate Killer support WooCommerce?

Yes. The FREE version protects WooCommerce Classic Checkout from accidental duplicate submissions within a 60-second window.

How does Duplicate Killer work?

When a form is submitted, selected field values are stored in the database. If the same value is submitted again, the submission is blocked and a validation message is shown. For WooCommerce, a unique order fingerprint is generated from billing email, cart items, order total and currency.

Can multiple users submit the same value?

Yes. In the PRO version, you can enable “Unique entries per user”, allowing multiple users to submit the same value while blocking repeat submissions from the same user.

Does it affect form design or styling?

No. Duplicate Killer works in the background and does not change your form appearance.

Does it work with Elementor Forms?

Yes. Duplicate Killer fully supports Elementor Forms.

Does this plugin work with existing spam protection plugins?

Yes. Duplicate Killer works alongside spam and CAPTCHA plugins and focuses only on preventing duplicate form submissions.

更新日志:

1.5.3 1.5.2 1.5.1 1.5.0 1.4.9 1.4.8 1.4.7 1.4.6 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.1 1.3.0 1.2.3 1.2.2 1.2.1 1.2.0 1.1.9 1.1.7 1.1.6 1.1.5 1.1.4 1.1.3 1.1.2 1.1.1 1.1.0 1.0