spFlat! vs Bytecheck
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
spFlat! compared with Bytecheck
| Detail | S
spFlat! | 
Bytecheck |
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| What it does | Automated SPF flattening service that prevents email delivery failures by managing SPF records within DNS lookup limits
| Affordable bulk email verification with live mailbox checks on your own probe fleet
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| Stage | Not given
| MVP
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| Founded | Not given
| Not given
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| Based in | NL
| Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free 14-day trial. After trial: €10 per domain per month. No setup fees, cancel anytime.
| Starter: 5,000 credits for $9 USD; Basic: 10,000 credits for $14 USD; Growth: 50,000 credits for $34 USD; Pro: 100,000 credits for $62 USD; Scale: 500,000 credits for $135 USD; Enterprise: 1,000,000 credits for $225 USD. Free accounts receive 100 signup credits and eligible unpaid first workspaces c
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| Key features | - Automatic SPF record flattening
- DNS lookup limit prevention
- Real-time SPF monitoring
- 24/7 IP range monitoring
- 1-click DNS updates
- Free SPF lookup audit
- 99.9% uptime SLA
| - Single email checks with typo detection and disposable provider identification
- Bulk email verification with CSV upload and duplicate removal
- Email finder using name, domain, and candidate patterns
- REST API with structured JSON results
- Multiple workspaces per account with separate credit balances
- Multiple named API keys per workspace
- Detailed validation flags including syntax, MX, SMTP, catch-all, and disposable checks
- Non-expiring credits with no monthly spending cap
- Free public email checker tool
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| What makes it different | - Automatically converts complex SPF include chains into flat records using only 1 DNS lookup instead of many
- Continuously monitors email provider IP changes and updates your SPF record 24/7 automatically
- Improves email deliverability by up to 15% through proper SPF record management
- ISO 27001 and NEN 7510 certified hosting with GDPR compliance
| - Own infrastructure with live SMTP checks rather than reselling third-party verdicts
- Cost-first pricing with no hidden dashboard tax or seat charges
- Non-expiring credits and no double-charging for duplicates
- Honest uncertainty reporting: returns unknown instead of guessing
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 4 |
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| Citation Flow (Majestic) | 11 | 15 |
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| Referring domains (Majestic) | 4 | 1 |
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5 details filled in for both companies.
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