DeBounce vs Voila Norbert

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.

Voila Norbert finds and verifies work email addresses from a prospect’s name and company email domain. It assigns a certainty score to addresses it finds, and the site claims a success rate of up to 98%. Enrichment can add a contact’s current job title, company, location, and social profiles; Prospect Finder filters people by title, company, and location. Sequences include AI email writing, inbox rotation, A/B testing, personalization, and email warmup.

Use the service on the web, through its API, or with its Chrome extension, which can find contact information while browsing LinkedIn profiles, Search, and Sales Navigator. The API supports finding, verifying, and enriching emails, with PHP, Python, Ruby, and.Net support listed. CSV bulk searches can contain up to millions of lines. Only successful finds count as credits, and duplicate searches are not charged again. Free leads provide 50 credits once an account is created. Paid plans start at $49/mo; Valet is $49 a month for up to 1,000 leads/month, while yearly billing is listed at $39 a month.