Platform Info & API

7 supported platforms, the free API, and how it all works.

7 Supported Platforms

Shodan

MMH3

The original IoT search engine. Indexes MMH3 of every favicon it scans.

http.favicon.hash:{hash} Open Shodan

FOFA

MMH3

Internet asset search with favicon hash queries.

icon_hash="{hash}" Open FOFA

ZoomEye

MD5

Strong Asia-Pacific coverage. Query is base64(iconhash="<md5>") on zoomeye.ai.

iconhash="<md5>" (base64 encoded in URL) Open ZoomEye

Censys

MD5

Censys Platform Web Properties search using an exact MD5 favicon hash.

web.endpoints.http.favicons.hash_md5="{hash}" Open Censys

Netlas

SHA256

Searches favicon SHA256; its perceptual search uses a different algorithm.

http.favicon.hash_sha256:{hash} Open Netlas

VirusTotal

GTI dHash

Uses VirusTotal Intelligence URL search by difference hash; access requires an eligible account.

entity:url main_icon_dhash:"<hash>" Open VirusTotal

CriminalIP

MMH3 hex

Signed hex of MMH3 hash. Positive: 72b36155 · Negative: -30149ea. Uses search.criminalip.io.

favicon:<hex> e.g. 72b36155 or -30149ea Open CriminalIP

Quick API

API v2

Recommended

All 5 hashes + 7 platform links + tech detection. Free, no auth.

GET https://faviconhasher.codejavu.tech/api/v2?url=https://example.com Full API Docs

Bulk Processing

Up to 10 unique URLs with bounded concurrency. Rate limited to 5 req/min.

POST /bulk
{"urls": ["https://example.com", "https://github.com"]}

Bulk Docs

Technology Fingerprint DB

Every hash you generate is automatically checked against our curated database of 113+ known technology fingerprints. A match instantly tells you what's running on the target host.

Spring Boot · Jenkins · Grafana · pfSense · F5 BIG-IP · Cobalt Strike · Kubernetes · and 100+ more.

Browse All Fingerprints

How it works

Fetch Favicon

3 strategies: HTML link tag parsing → /favicon.ico fallback → image href scan. Handles sites like Facebook that block HTML bots.

Compute 5 Hashes

MMH3 on base64 bytes (Shodan/FOFA), MD5 (Censys), SHA256 (Netlas), perceptual hash and difference hash (VirusTotal).

One-click Search

Pre-builds search URLs for all 7 platforms. One favicon → related internet-facing hosts instantly.

Auto-identify Tech

Matches MMH3 against 113+ known fingerprints — Spring Boot, Jenkins, Grafana, Cobalt Strike, pfSense, and more.