DeBounce review (2026): pricing, credits, guarantee, verdict

What DeBounce is

DeBounce is an email verification service that checks whether an address exists and how risky it is, sold on credits that never expire. It takes lists by upload, single addresses, an API or a JavaScript widget for sign-up forms, and reports each address as deliverable, invalid, catch-all, disposable, role-based or a spam trap, with free deduplication on the way in. Around validation it sells an email finder, data enrichment and list monitoring. The site has run since 2018 under the DeBounce name and names no company or address beyond its copyright line.

How DeBounce’s pricing works

Credits are bought in advance and one credit verifies one address. Pay-as-you-go packs cost $15 for 5,000 credits, which is $0.0030 each, then $25 for 10,000, $45 for 25,000, $75 for 50,000 at $0.0015, $135 for 100,000, $200 for 200,000 at $0.0010, $450 for 500,000, $750 for 1,000,000 at $0.0008, $1,300 for 2,000,000 and $2,200 for 5,000,000 at $0.0004, with anything larger by contact. The monthly subscription uses the same tiers at 8% less, so 5,000 credits cost $13.80 a month, 50,000 cost $69 and 1,000,000 cost $690. Sign-up gives 100 free credits without a card, and the page says every price includes taxes and fees.

Two features cost more than one credit. Catch-all validation, which tries harder on domains that accept everything, uses 10 credits an address, and a successful enrichment lookup uses 20. List monitoring, which re-checks a list automatically, is charged at twice the list size each month. Refunds are available only under the deliverability guarantee: DeBounce promises 97.5% or better deliverability on verified lists, with 95% accuracy claimed on Microsoft addresses and 98% on the rest, excludes Yahoo and AOL addresses in deactivation, and warns that GMX and WEB.de lists may bounce more.

Accuracy, speed and features

Verification runs on DeBounce’s servers without sending mail, so your own domains and IPs are never involved, and unknown results are reported as such. The pricing page says 10,000 addresses take about 10 minutes and 100,000 under two hours. All features ship on every plan: the API, the real-time widget that blocks invalid addresses on forms, bulk uploads, the finder and enrichment tools. The provider-by-provider accuracy figures are the company’s own; we have no independent audit, which is true of every verifier in this directory.

Who DeBounce is for, and who should look elsewhere

DeBounce suits cold email teams that clean lists regularly and want the lowest per-address price with credits that keep. It is a poor fit for buyers who need a named vendor with a contract and a refund policy, or for lists dominated by catch-all domains, where the 10-credit check changes the maths. Emailable is another pay-as-you-go verifier worth pricing against it: $38 for 5,000 credits, $60 for 10,000 and $420 for 100,000, with 250 free credits and unknown results refunded to the balance. EmailListVerify costs more at 100,000 credits ($186 against $135) but less at a million ($659 against $750), with a 14-day withdrawal right for EEA and UK consumers.

DeBounce alternatives

MillionVerifier is the other price leader and names its company. ZeroBounce costs more per address but bundles warmup seeds and placement tests into a subscription, and NeverBounce is the large verifier with pay-as-you-go pricing. The verification tools comparison scores them side by side.

Using DeBounce with PureMail

Clean the list before it reaches the sequencer, then send from PureMail’s warmed Google Workspace and Microsoft 365 inboxes at a few dozen emails a day each. Drop invalid, disposable and role-based addresses, put catch-all results in a small separate campaign, and re-verify any list older than a month, because a fresh inbox cannot afford the bounce rate of a stale one.