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Need help with Duplicate Killer? Get fast support, troubleshooting guidance, and expert assistance for your WordPress forms.
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Latest Features

Explore the newest improvements, performance updates, and powerful features added to Duplicate Killer.
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Guides & Tutorials

Learn how to prevent duplicate submissions, optimize your forms, and use Duplicate Killer like a pro.
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Latest Features

Slow websites create more Duplicate Orders than you think

Slow websites create more Duplicate Orders than you think

FAQ: Duplicate WooCommerce Orders ❓ Why do slow websites create duplicate WooCommerce orders? Customers often think checkout failed when pages load slowly or freeze temporarily. The natural reaction is to click the “Place Order” button again, creating repeated submissions. ❓…
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The Psychology Behind Duplicate Form Submissions

The Psychology Behind Duplicate Form Submissions

Most businesses think duplicate form submissions are caused by technical problems. But in reality, many duplicate submissions happen because of psychology. People click buttons emotionally, not logically. And when websites fail to provide reassurance, users naturally repeat actions. This is…
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Why Form Spam and Duplicate Entries Are Different Problems

Why Form Spam and Duplicate Entries Are Different Problems

Duplicate entries and form spam are often confused by WordPress website owners. Many businesses install anti-spam plugins successfully, but duplicate entries can still damage CRM systems, analytics, and lead quality. And misunderstanding the difference often leads businesses to install the…
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Why Duplicate Leads Hurt Facebook Ads Optimization

Why Duplicate Leads Hurt Facebook Ads Optimization

Duplicate leads can seriously damage Facebook Ads optimization without most advertisers realizing it. When duplicate leads enter your CRM repeatedly, your campaigns may start optimizing using inaccurate conversion data and misleading audience signals. They change creatives.They increase budgets.They test new…
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Support & Bug Reports

If you’re reporting a bug or compatibility issue, please include a Diagnostics report.

Go to: Duplicate Killer → Diagnostics
1. Enable Diagnostics
2. Reproduce the issue (submit the form 2–3 times)
3. Click “Download TXT Report”
4. Attach the downloaded file to this form

This helps us identify and resolve the issue much faster.

Do you have a diagnostics report?
Please attach it.

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