[Showoff Saturday] Built a free IP whitelist config generator for AWS, MongoDB, GCP — feedback welcome

Sharing this for Showoff Saturday — built this to scratch my own itch.

Every time I switch networks or my ISP changes my IP, I have to:

1. Google "what is my IP"

2. Copy it

3. Open AWS console / MongoDB Atlas / GCP

4. Navigate to the security rules

5. Paste the IP in CIDR format (/32)

6. Repeat for every service

It's a 5-minute annoyance that happens way too often. So I built **ipwhitelist.dev** to solve it.

**What it does:**

- Detects your public IP instantly

- Shows CIDR notation, city, ISP, and latency

- Generates ready-to-paste configs for AWS CLI, Terraform, MongoDB Atlas CLI, GCP firewall rules, iptables, UFW, and nginx

- IP Fingerprint check (proxy/VPN/datacenter detection)

- Shareable "Whitelist This IP" card for teammates

**Also built these free tools on the same site:**

- Port Checker

- DNS Lookup (A, AAAA, MX, CNAME, TXT, NS via Google DoH)

- WHOIS Lookup

- SSL Certificate Checker with expiry warnings

- IP Location Map

- HTTP Headers Inspector with security analysis

- Latency Test to 6 AWS regions

- User Agent Parser

- IPv6 Detector

All client-side, no backend, no login, no data stored.

Would love feedback — especially if there are cloud providers or config formats I'm missing.

**https://ipwhitelist.dev\*\*