ZeroBounce Email Verification & Validation

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

Share of active installs on each version of this plugin · 98% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

Refined from the date this plugin crossed into its current band.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from. The recent download trend is too spiky to read.

1. ★★★★★ ttoaster

   2.8y ago

   Been using this a while and it works pretty well; very useful for rejecting fake email addresses used by spammers/scammers, and also for validating real users/customer email addresses (where they sometimes mis-type their email address).So, why only 4 stars? Well simply because I asked about personal (local) whitelisting and blacklisting functionality when I spoke to their onboarding rep., and was promised it would be added soon; over 7 months later, still no sign of this. As a paying customer, I would like the developers to be more responsive and deliver features/functionality that your rep. promised…

   Read on wp.org ↗
2. ★★★★★ jasonblackdog

   3.2y ago

   I have tried so many plugins, honeypot, captchas, IP blocking countries, user agents, etc. but this plugin is great! I was very skeptical at first but after several weeks of using this, we are now on a middle-tier paid plan. We use GravityForms so the plugin was VERY easy to configure and install. Super simple, bravo plugin devs!

   Read on wp.org ↗
3. ★★★★★ crgavrila

   3.5y ago

   Exactly what I needed for my contact form 7. So simple to integrate with my contact form plugin.

   Read on wp.org ↗
4. ★★★★★ Mecanik1337

   3.5y ago

   I have tested this plugin on several of my personal and business websites, it’s awesome. No more spam and fake signups. Service pricing is also decent. Recommended.

   Read on wp.org ↗

1 disclosed vulnerability on record for this plugin, fixed in the current version. Sites on older versions stay exposed until they update.

1. Medium · 5.5 ZeroBounce Email Verification & Validation <= 1.0.11 - Authenticated (Administrator+) Stored Cross-Site Scripting ↗
   2023-12-26 CVE-2023-51374 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.0.11 Patched in 1.0.12

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0.1

Translated into 3 languages, 0 at 90% or more

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

1. 2026-07-10 1K+ → 900+ down after 556 days in tier
2. 2024-12-31 2K+ → 1K+ down after 4 days in tier
3. 2024-12-27 1K+ → 2K+ up after 1 days in tier
4. 2024-12-26 2K+ → 1K+ down after 1 days in tier
5. 2024-12-25 1K+ → 2K+ up after 2 days in tier
6. 2024-12-23 2K+ → 1K+ down after 4 days in tier
7. 2024-12-19 1K+ → 2K+ up after 4 days in tier
8. 2024-12-15 2K+ → 1K+ down after 7 days in tier

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

• Clearout Email Validator – Real-Time Email Verification on WordPress Forms 600+ installs · 4.0★ · 4 shared tags B
• Emailable – Premium Email Verification & Validation 40+ installs · 3.8★ · 4 shared tags D
• DeBounce Email Validator 300+ installs · 3.9★ · 3 shared tags B
• QuickEmailVerification 200+ installs · 4.2★ · 3 shared tags A
• Dilli Email Validator 100+ installs · 4.4★ · 3 shared tags B
• TrueMail Email Validator 10+ installs · 3.6★ · 3 shared tags D

Embed this report card

Drop a live Pulse card for ZeroBounce Email Verification & Validation into a readme, a review or a deck. It updates itself.

ZeroBounce Email Verification & Validation: 900+ active installs, 4.8★ (4 reviews). Plugin Pulse (WP Mayor), as of 2026-08-30. https://plugins.wpmayor.com/plugin/zerobounce