IP Lookup, DNS & Security Tools
NetSight — fast, private, no signup
Paste an IP, domain or URL. Instant geolocation, DNS records, reputation and threat checks.
Network
Low-level network queries and diagnostics.
DNS & Mail
DNS records, mail server posture, deliverability.
Security
Threat intel, vulnerabilities, reputation.
Utilities
Calculators, references, password tools.
Browser
Safe URL preview and interactive browsing.
Common questions
Is NetSight free?
Yes. All tools are free for personal and non-commercial use. The public API has generous rate limits without any signup.
Do you log queries or IPs?
We don't sell data or attach identifiers to queries. Short-term caching stores public lookup answers to reduce load on upstream providers.
Where does the data come from?
NetSight aggregates multiple external sources - IP geolocation, abuse reputation, certificate transparency and threat intelligence - and merges them into a single unified report. We also operate our own honeypot infrastructure: a dedicated network of decoy services (SSH, VNC, HTTP, Modbus, S7) that records unsolicited connection attempts. The resulting database of attacker IPs feeds directly into the reputation signals shown in our IP lookup, and a curated subset is published as a free public blocklist.
Can I use the API in my app?
Yes. See the API reference for every endpoint and current rate limits. Attribution is appreciated but not required for non-commercial use.