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SPECIFICTION
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DeBounce

debounce.com

Free plan WebAPI
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Spec score 7.8 #21 of 36 in Email Verification Services

What it is

DeBounce checks email addresses for syntax, domain, mailbox, catch-all and other issues. Users can upload TXT or CSV lists for bulk validation, then download result segments they can customize. The service detects disposable addresses and filters spam traps and honeypots. Its API handles real-time and bulk checks and can be used from Shell, Node.js, Ruby, PHP and Python environments. Concurrent validation defaults to five requests; higher throughput may be available on enterprise plans. List Monitoring rechecks connected lists about daily, typically 15–35 times per month, and usually uses credits equal to around twice the monitored list size each month. Integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier. DeBounce says real-time API addresses are not stored and bulk lists and result files are deleted after seven days. Its Pay-As-You-Go option is listed at free, with 5K–5M credit options, one credit per email validation and credits that never expire. A free plan and free trial are listed.

Spec sheet

Purpose
DeBounce verifies email addresses through syntax, domain, mailbox, catch-all and other checks.Read 1 Oct 2026 · debounce.com
API
The API supports real-time and bulk validation and can be used from Shell, Node.js, Ruby, PHP and Python environments.Read 1 Oct 2026 · debounce.com
Integrations
Listed integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier.Read 1 Oct 2026 · debounce.com
Security
DeBounce states that retained personal data is stored in Germany, websites use SSL, raw-data servers are private-network-only, and result files are encrypted.Read 1 Oct 2026 · debounce.com
Privacy
DeBounce states that real-time API email addresses are not stored and that bulk lists and result files are automatically deleted after seven days.Read 1 Oct 2026 · debounce.com
Support
The site advertises 24/7 support with experts.Read 1 Oct 2026 · debounce.com
API limit
Concurrent validation is limited to five requests by default, with higher throughput potentially available for enterprise plans.Read 1 Oct 2026 · debounce.com
Bulk validation
Users can upload TXT or CSV email lists, process them, and download customizable result segments.Read 1 Oct 2026 · debounce.com
Deliverability guarantee
DeBounce states that it backs verification results with a 97.5% or better deliverability-rate guarantee.Read 1 Oct 2026 · debounce.com
Disposable detection
The service detects temporary or throwaway email providers.Read 1 Oct 2026 · debounce.com
GDPR
DeBounce states that it is GDPR compliant and offers EU or North America validation-server regions on request.Read 1 Oct 2026 · debounce.com
Monitoring
List Monitoring validates connected lists approximately once per day and typically 15–35 times per month.Read 1 Oct 2026 · debounce.com
Monitoring cost
List Monitoring typically consumes approximately twice the monitored list size in credits per month.Read 1 Oct 2026 · debounce.com
Spam traps
DeBounce filters spam-trap and honeypot emails using an updated database.Read 1 Oct 2026 · debounce.com

Plans and prices

Pay-As-You-Go Free 5K–5M credit options · 1 credit per email validation · credits never expire · all features included Read 1 Oct 2026 · debounce.com

Every DeBounce plan and price →

Strong points and limits

Strong points

  • Supports real-time and bulk API validation.
  • Credits never expire on Pay-As-You-Go.
  • Bulk results can be customized.
  • Free plan and free trial are listed.

Limits

  • Concurrent validation defaults to five requests.
  • Monitoring typically uses twice the list size in credits monthly.
  • Bulk lists and result files are deleted after seven days.

Who it suits

DeBounce suits users who need to validate individual addresses through an API or process larger TXT and CSV lists. Its integrations and List Monitoring also fit teams maintaining connected email lists.

Verdict

DeBounce covers bulk, API and ongoing list validation, with a broad set of listed integrations. Review the concurrency limit and List Monitoring credit use when planning volume.

Where Specifiction places it

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