Sites using SpamFilter.io
Hosted inbound mail filtering gateway that blocks spam, phishing and malware before delivery.
5 sites
4 found by StackScope, 1 via launch platforms
- StackScope Wider Web 4
- Product Hunt 1
SpamFilter.io has been detected on 5 launches since first appearing in August 2026. Most recent detection: iubenda MCP, yesterday.
It's most commonly paired with Cloudflare, Google Tag Manager, and HTTP/3.
Share of new sites using SpamFilter.io
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
Email Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
DNSSmartHost
|
0.32% | 60.23% |
| #2 | – |
MailSpamProtection
|
0.32% | 58.68% |
| #3 | – |
AntiSpamCloud
|
0.10% | 18.20% |
| #4 | ▲2 | Premium SMTP | 0.02% | 3.69% |
| #5 | ▼1 | SpamExperts | 0.01% | 2.68% |
| … | ||||
| #62 |
SpamFilter.io
Current page
|
<0.01% | 0.03% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Security tool. All 159 in Email Security →
Often used with
| Tool | Sites |
|---|---|
Cloudflare
|
4 |
Google Tag Manager
|
3 |
| HTTP/3 | 3 |
Google Search Console
|
2 |
Mailgun
|
2 |
Tools most often detected on the same sites as SpamFilter.io.
Recent launches we can show
1 of the 5 sites using SpamFilter.io are product launches we list individually. The other 4 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 5 sites using SpamFilter.io, filterable and exportable, from £15 a month.