dSyncIPSec

This library comes with features meant to prevent abuse in form of spam and other malicious activities and comes with the following detections and features:

• Block known abusers, bogon IPs, datacenters, crawlers, proxies, satelites, Tor IPs and VPNs.
• Possibility to block traffic from entire Countries
• Whitelist and Blacklist feature based on IP address and Company Domains

The library was designed for usage with express and filtering abusive and (potentially) malicious traffic based on the IP address.

Important

It is highly recommended that you cache or store the API response!!!!

---

Setup

import dSyncIPSec from "@hackthedev/dsync-ipsec"

// will use default settings
export let ipsec = new dSyncIPSec();

// alternatively, with settings already specified.
// settings shown here are the default settings.
export let ipsec = new dSyncIPSec({
    blockBogon: true,
    blockDatacenter: true,
    blockSatelite: true,
    blockCrawler: true,
    blockProxy: true,
    blockVPN: true,
    blockTor: true,
    blockAbuser: true,
    // some arrays
    whitelistedUrls: [],
    whitelistedIps: [],
    blockedCountryCodes: [],
    whitelistedCompanyDomains: [],
    blacklistedIps = [
        "::1",
        "127.0.0.1",
        "localhost"
    ]
}); 

---

Updating settings

// you can only specify the keys that you actually want to update
ipsec.updateRule({
    blockBogon: true,
    blockSatelite: true,
    blockCrawler: true,
    blockProxy: true,
    blockVPN: true,
    blockTor: true,
    blockAbuser: true,

    whitelistedUrls: [],
    whitelistedIps: [],
    blacklistedIps: [],
    companyDomainWhitelist: [],
});

---

Filtering express traffic

await ipsec.filterExpressTraffic(app)

---

Manually getting IP Info

await lookupIP("1.1.1.1")

Example response object:

{
  "ip": "1.1.1.1",
  "rir": "APNIC",
  "is_bogon": false,
  "is_mobile": false,
  "is_satellite": false,
  "is_crawler": false,
  "is_datacenter": true,
  "is_tor": false,
  "is_proxy": false,
  "is_vpn": false,
  "is_abuser": true,
  "datacenter": {
    "datacenter": "kamatera.com",
    "network": "1.1.1.1/24",
    "country": "HK",
    "city": "Hong Kong",
    "postal": "0"
  },
  "company": {
    "name": "APNIC Research and Development",
    "abuser_score": "0.0156 (Elevated)",
    "domain": "apnic.net",
    "type": "business",
    "network": "1.1.1.0 - 1.1.1.255",
    "whois": "https://api.ipapi.is/?whois=1.1.1.0"
  },
  "abuse": {
    "name": "APNIC Research and Development",
    "address": "6 Cordelia St",
    "email": "helpdesk@apnic.net",
    "phone": "+61-7-38583100"
  },
  "asn": {
    "asn": 13335,
    "abuser_score": "0.0267 (Elevated)",
    "route": "1.1.1.0/24",
    "descr": "CLOUDFLARENET, US",
    "country": "us",
    "active": true,
    "org": "Cloudflare, Inc.",
    "domain": "cloudflare.com",
    "abuse": "abuse@cloudflare.com",
    "type": "hosting",
    "created": "2010-07-14",
    "updated": "2017-02-17",
    "rir": "ARIN",
    "whois": "https://api.ipapi.is/?whois=AS13335"
  },
  "location": {
    "is_eu_member": false,
    "calling_code": "61",
    "currency_code": "AUD",
    "continent": "OC",
    "country": "Australia",
    "country_code": "AU",
    "state": "New South Wales",
    "city": "Sydney",
    "latitude": -33.86785,
    "longitude": 151.20732,
    "zip": "1001",
    "timezone": "Australia/Sydney",
    "local_time": "2026-01-16T15:26:18+11:00",
    "local_time_unix": 1768537578,
    "is_dst": true
  },
  "elapsed_ms": 0.16
}