validation.dnsbl
shallownl.getapi/mcp · Verify this server
Check an IP address against DNS-based blacklists (RBLs) Checks an IP address against 5 public DNSBL / RBL zones (Spamhaus, SpamCop, SORBS, Barracuda, PSBL) by querying their DNS-based blacklists. This is a lightweight, realtime check without any external API calls or rate limits. Results are cached per IP for 1 hour. Useful for inbound mail filtering, form submission blocking, and general IP reputation checks. Combine with our email validation APIs for a full anti-spam suite. Cost: 1 credit(s) per call. An API key is required via the X-Api-Key header (or Authorization: Bearer <key>); a per-call wallet payment via x402 is also accepted.
1 trials · measured today
validation.dnsbl scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against nl.getapi/mcp, measured 20 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-20 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
Embed this score
Available for every tool, scored or not — not a verification perk. Always links back to this page.
[](https://vouch.tools/tools/c6b6d7ba-371a-481d-ab03-44830b91a877)