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Test and Improve Your
Email Deliverability

SpamCipher

The email deliverability intelligence platform that tells you exactly where your emails land and why. Seed testing, content analysis, and authentication monitoring in one place.

Trusted by email teams at
TechCorp MailFlow SendPro DataSync CloudMail

Everything you need to reach the inbox

Four layers of analysis covering every angle spam filters use to judge your email.

Inbox Insight

Send a test email to our seed addresses and see exactly where it lands across Gmail, Outlook, Yahoo, and 15+ providers.

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Content Analysis

60+ content rules check your subject lines, body text, links, image-to-text ratio, and HTML structure for spam triggers.

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Authentication

Validates SPF, DKIM, and DMARC alignment. Flags missing records, weak keys, and configuration issues before they hurt delivery.

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AI Classifier

Machine-learned model trained on millions of spam/ham decisions predicts filter outcomes with 98% accuracy.

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Three steps to better deliverability

No setup required. Get your first placement report in under 60 seconds.

1

Send a test email

Send to our unique test address from your ESP or email client. We handle the rest.

2

View placement results

See inbox, spam, or promotions placement per provider. Full breakdown in real-time.

3

Fix & monitor

Get actionable fixes with priority ranking and set up continuous monitoring alerts.

See where your emails land

Real-time inbox placement data across every major email provider.

Placement Report — Campaign #1247
9.2
Deliverability Score
Gmail
Inbox
Outlook
Promotions
Yahoo
Inbox
iCloud
Inbox
SPF record valid and aligned PASS
DKIM signature verified (2048-bit key) PASS
DMARC policy set to reject PASS
Image-to-text ratio slightly high (62%) WARN
No blacklisted URLs detected PASS

Deliverability tools, free forever

Professional-grade tools to diagnose and fix email deliverability issues. No account required.

Spam Score Checker

Paste your email HTML and get an instant deliverability score against 60+ spam filter rules.

Check now
Coming Soon

Blacklist Checker

Check your domain and IP against 30+ DNS-based blacklists. Instant results, no signup required.

Check now
Coming Soon

DMARC Generator

Create properly formatted DMARC DNS records with the right policy, reporting, and alignment settings.

Generate
Coming Soon

SPF Flattener

Optimize your SPF record by flattening includes and staying under the 10-lookup limit.

Flatten

Simple, transparent pricing

Start free. Upgrade when you need deeper analysis and higher limits.

Free
$0
Free forever
  • 5 scans per day
  • Content analysis
  • Basic spam score (0-10)
  • Rule-by-rule breakdown
Start Free
Starter Coming Soon
$29 /mo
For email marketers
  • 100 scans per day
  • Auth & infra checks
  • Inbox placement prediction
  • API access
  • Scan history (30 days)
Agency Coming Soon
$199 /mo
For high-volume senders
  • Unlimited everything
  • White-label reports
  • Bulk scan API
  • Team seats (10)
  • Dedicated support
  • Custom rules

Trusted by email professionals

"We were landing in Gmail promotions for months and couldn't figure out why. SpamCipher pinpointed the exact content triggers in under 10 seconds. Inbox rate went from 62% to 94%."

MR
Marcus Rivera
Head of Email, TechCorp

"The DMARC and SPF validation alone saved us from a major deliverability crisis. Found a misconfigured DKIM key that had been silently failing for weeks."

SK
Sarah Kim
Email Marketing Manager, MailFlow

"We run 200+ campaigns a month for clients. SpamCipher replaced three separate tools in our stack. The seed testing across providers is a game changer for agency work."

JP
James Park
Founder, SendPro Agency

Ready to land in the inbox?

No credit card required · Free forever · 5 scans per day