CatchDoms as a SpamZilla alternative
SpamZilla is built for PBN builders who need spam detection above everything else. CatchDoms takes a different approach: quality scoring, language detection, and API access for people who want more than just spam filtering.
Why people look for SpamZilla alternatives
SpamZilla does one thing well: it tells you whether an expired domain is spammy. The proprietary SpamZilla Score analyzes backlink profiles, anchor text patterns, and link velocity to flag domains that could hurt your site. For PBN builders, that's exactly what they need.
But if you're not building PBNs, SpamZilla's feature set starts feeling narrow. There's no quality scoring beyond spam detection, no way to filter domains by language, and no screenshots to preview what a domain used to look like. The tool is laser-focused on one use case.
At $37/month ($444/year), SpamZilla sits in a similar price range to CatchDoms. The question isn't really about cost. It's about whether you need a spam detection specialist or a broader domain research platform.
People also hit walls when trying to automate their workflow. SpamZilla has no API and no integration with AI tools like Claude or Cursor. If you want to build alerts or plug domain data into other tools, you're stuck with manual exports.
How CatchDoms fills the gap
CatchDoms aggregates domains from 7 registrars and scores them 0-100 based on age, authority, backlinks, name quality, and TLD. Instead of just flagging spam, we give you a single number that tells you how interesting a domain is. You also get language detection for 30+ languages, Wayback screenshot previews on hover, a REST API, and MCP integration for AI assistants.
Feature comparison
| Feature |
|
|
|---|---|---|
| Domain sources | 16 sources | 7 sources |
| Total domains tracked | 350k+/day | 370k+ |
| TLDs covered | 60+ | 49 ccTLDs + gTLDs |
| Quality scoring | SpamZilla Score (spam only) | 0-100 quality score (weighted) |
| Language detection | No | Yes (30+ languages) |
| Wayback screenshots | No | Yes (hover preview) |
| API access | No | REST API + MCP |
| MCP (AI assistant) | No | Yes (Claude, Cursor) |
| Favorites & notes | No | Yes (notes + tags) |
| Saved searches | No | Yes |
| CSV export | Yes | Yes |
| Push notifications | Email alerts | Browser push + in-app |
| Spam detection | Dedicated (proprietary) | Integrated (scoring penalty) |
| Free tier | 25 domains/day | Real access (limited rows) |
| Pricing model | $37/mo ($444/yr) | 468 EUR/yr (~$505/yr) |
Switch if...
- You want a single quality score instead of checking metrics one by one
- You need language detection (filtering French, German, or Japanese domains)
- You want API access or AI assistant integration
- You prefer a modern UI with favorites, notes, saved searches, and push alerts
Stay if...
- You're building PBNs and spam detection is your top priority
- You need the Backlinks Miner to inspect individual link profiles
- You rely on SpamZilla's 16 domain sources (CatchDoms has 7)
- You need 70+ granular PBN-specific filters
Try CatchDoms free
No credit card needed. Browse 370,000+ expired domains with quality scores, language detection, and Wayback screenshots.
Frequently asked questions
Yes, but differently. SpamZilla uses a dedicated algorithm analyzing backlink patterns and anchor text. CatchDoms detects spam through domain name analysis (flagging keywords like "casino", "viagra", etc.) and content analysis from Wayback screenshots. Spammy domains get score penalties that push them down or out of results. It's integrated into the scoring rather than being a separate tool.
CatchDoms shows backlink count, referring domains, domain authority, and PageRank. For individual backlink inspection (like SpamZilla's Backlinks Miner showing top 100 links), you'd need to use Ahrefs or Majestic directly. We link to both from each domain row.
They're similar. SpamZilla costs $444/year (Standard plan). CatchDoms Pro is 468 EUR/year (~$505). CatchDoms includes a free tier with real domain access, while SpamZilla's free plan shows only 25 domains per day.
CatchDoms offers browser push notifications and in-app alerts for saved searches and auction expiry. You can set up saved search filters and get notified when matching domains appear.
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