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WP HealthKit

Is Klaviyo Secure?

A

Grade A — Excellent

Low Risk

Klaviyo passes WP HealthKit's 49-layer security audit with flying colours, earning a Grade A with only 108 minor findings.

Grade

A

Findings

108

Critical

0

Standards

100/100

Active Installs

100K+

Last Audited

Today

What We Found

PHP Version Mismatch: Declared vs RequiredHIGH
Version mismatch: declares WP 5.2+ but uses WP 5.8+ functionsHIGH
41 unprefixed global functions detectedHIGH
Missing text domain in esc_html_e() callHIGH
Missing text domain in esc_html_e() callHIGH

+ 103 more findings in the full report.

How It Compares

D

Site Kit by Google – Analytics, Search Console, AdSense, Speed

5.0M+ installs

C

MonsterInsights – Google Analytics Dashboard for WordPress (Website Stats Made Easy)

2.0M+ installs

B

GTM4WP – A Google Tag Manager (GTM) plugin for WordPress

700K+ installs

View Full Report Audit Your Own Plugin

Frequently Asked Questions

Is Klaviyo safe to use?

Klaviyo passes WP HealthKit's 49-layer security audit with flying colours, earning a Grade A with only 108 minor findings.

How many vulnerabilities does Klaviyo have?

WP HealthKit's audit found 108 findings for Klaviyo: 0 critical, 14 high, and 67 medium severity issues.

What is Klaviyo's security grade?

Klaviyo has an overall security grade of A (Excellent) based on WP HealthKit's 49-layer security audit.