Alternatives

Products that do what PingBack.sh Free Blind XSS & OOB does

Never miss a blind XSS callback again.

1
Pinggy▲282
Public URLs for localhost without downloading any binary
2024
2WD
Which DNS servers are you pointing to?▲283
2020 · which.nameserve.rs
3
Momento▲140
A powerful platform to help you monitor your domains
2020
4
SMTP‑Test.com▲103
One‑click SMTP server test with real‑time protocol logs
2025
5
PingPing▲168
A simple tool to monitor your website and SSL
2018
6
Pinggy App▲145
Easiest way to share your websites and apps from localhost!
2024
7EW
Easy Webserver for Node.js, Python, PHP, with Free SSL▲123
2017 · github.com
8
Web Ping▲104
Mac App to monitor your websites
2019
9AF
A Forever Free Alternative to Pingdom/Uptimerobot/Statuscake▲31
2019 · freshworks.com
10TY
Test your E-Mail for IP Leaks▲50
2013 · emailipleaktest.com
11IB
I built a guided Build your own DNS Server challenge▲57
Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://codecrafters.io/dns-server I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS…
2023 · app.codecrafters.io
12
PingWatch — Uptime Monitoring▲16
Monitor your websites 24/7. Get instant downtime alerts.
Jun 2026 · pingwatch.netlify.app
13AT
a tool for inspecting HTTP callbacks in realtime▲21
2013 · webhookinbox.com
14
Pingify▲32
Real-Time Monitoring for Websites
2024
15DR
DNS rebinding protection for Express.js▲30
2018 · github.com
16RY
Roll your own serverless RequestBin, for free.▲9
2020 · github.com
17
Edos Solutions▲5
9 free email, DNS, security, SEO and AI-search scanners
Jun 2026 · edos.com.au
18OT
OctoDNS, Tools for managing DNS across multiple providers▲31
After the major outages from AWS and Cloudflare, I began wondering how to make my own services more resilient. Using nameservers from different providers is doable but a bit tricky to manage. OctoDNS helps automate keeping the zones synced so AWS, Cloudflare, etc. are all serving the same information. In an age of centralized infrastructure, we can exploit the capabilities from the origins of the decentralized internet.
Nov 2025 · octodns.readthedocs.io
19IM
I Made a Node.js SMTP Email Verification Library▲5
Hey HN, Email list validation is important for reducing bounce rates, improving deliverability, enhancing security, and, of course, saving on service and/or infrastructure resources. Inspired by the email-verify project, the team at Pingback, created the ping-email library to perform this task for Pingback clients – and made it available as open source for other projects that need similar verification. If you need to validate emails, I made this lib with Node.js and TypeScript, just install it with `npm install ping-email`. Furthermore, I would love feedback on how the project turned out.
2024 · github.com
20
pingsrv.com▲3
Free website monitoring & status pages — set up via DNS
Jan 2026
21
FluxRadar▲7
Ping, DNS, IP & network diagnostics in one place
Jul 2026
22PS
P2P/serverless browser to Go back end – no DNS/IP required▲15
2019 · github.com
23
KillBounce▲5
Email verifier that actually handles catch-all domains
Jun 2026 · getkillbounce.com
24IT
Identifying the DNS server used to fulfill a HTTP request▲17
2013 · 5f5.org

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