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DeBounce
What it is
DeBounce verifies email addresses through syntax, domain, mailbox, catch-all, and other checks. For bulk validation, users can upload TXT or CSV lists, process them, and download customizable result segments. It detects disposable addresses and filters spam traps and honeypots. The API supports real-time and bulk validation and can be used from Shell, Node.js, Ruby, PHP, and Python environments. Concurrent validation is limited to five requests by default, though higher throughput may be available for enterprise plans. List Monitoring rechecks connected lists approximately once per day, typically 15–35 times per month, and generally uses credits equal to about 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 it does not store real-time API addresses and automatically deletes bulk lists and result files after seven days. It states that retained personal data is stored in Germany and that results are encrypted. DeBounce offers a free plan and a Pay-As-You-Go option listed as free, with 5K–5M credit options and credits that never expire.
For and against
For
- Bulk uploads accept TXT and CSV lists
- API supports real-time and bulk validation
- Detects disposable addresses, spam traps, and honeypots
- Credits never expire
- Offers a free plan
Against
- Concurrent validation defaults to five requests
- Monitoring can consume about twice list size in credits
- Bulk lists and result files are deleted after seven days
The verdict
DeBounce offers both bulk list checks and API validation, with integrations and monitoring for connected lists. Keep the default concurrency limit and List Monitoring’s credit use in mind when planning usage.
Who it suits
DeBounce may suit teams that need to check individual email addresses through an API or clean uploaded lists. List Monitoring and the listed marketing integrations may also fit teams managing connected email lists.
Plans and prices
Pay-As-You-Go
5K–5M credit options · 1 credit per email validation · credits never expire · all features included
Read 1 Oct 2026 · debounce.com
On the record
- API
- The API supports real-time and bulk validation and can be used from Shell, Node.js, Ruby, PHP and Python environments.debounce.com · read 1 Oct 2026
- API limit
- Concurrent validation is limited to five requests by default, with higher throughput potentially available for enterprise plans.debounce.com · read 1 Oct 2026
- Bulk validation
- Users can upload TXT or CSV email lists, process them, and download customizable result segments.debounce.com · read 1 Oct 2026
- Deliverability guarantee
- DeBounce states that it backs verification results with a 97.5% or better deliverability-rate guarantee.debounce.com · read 1 Oct 2026
- Disposable detection
- The service detects temporary or throwaway email providers.debounce.com · read 1 Oct 2026
- GDPR
- DeBounce states that it is GDPR compliant and offers EU or North America validation-server regions on request.debounce.com · read 1 Oct 2026
- Integrations
- Listed integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier.debounce.com · read 1 Oct 2026
- Monitoring
- List Monitoring validates connected lists approximately once per day and typically 15–35 times per month.debounce.com · read 1 Oct 2026
- Monitoring cost
- List Monitoring typically consumes approximately twice the monitored list size in credits per month.debounce.com · read 1 Oct 2026
- 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.debounce.com · read 1 Oct 2026
- Purpose
- DeBounce verifies email addresses through syntax, domain, mailbox, catch-all and other checks.debounce.com · read 1 Oct 2026
- 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.debounce.com · read 1 Oct 2026
- Spam traps
- DeBounce filters spam-trap and honeypot emails using an updated database.debounce.com · read 1 Oct 2026
- Support
- The site advertises 24/7 support with experts.debounce.com · read 1 Oct 2026
