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Dev tools · alternatives · 2026

24 alternatives to Fast subdomain enumerator written in Rust

Hello! I'm learning Rust and also information security, so what better way to learn than to put a tool together practicing both skills? I've tried to use a couple of different tools for subdomain enumeration (part of the Discovery-party when it comes to penetration testing), but none of them were very fast, even if the DNS resolver I pointed them towards is, so I wrote my own tool that leverages concurrency to check a lot of subdomains, fast! It's written in Rust, main parts being using Tokio and async_channels, and I think it works good enough for a first release. I wanted to get recursive…

Fast subdomain enumerator is a Rust-based tool for security researchers and penetration testers that quickly discovers subdomains during the reconnaissance phase. Built with Tokio and async channels for concurrent… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Fast subdomain enumerator written in Rust launched in 2022; newer entries below may have overtaken it.

  1. 1

    Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.

    2023 · ip.guide · its alternatives →

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    HNSW implementation in Rust. Reference: https://arxiv.org/ftp/arxiv/papers/1603/1603.09320.pdf - swapneel/hnsw-rust

    2024 · github.com · its alternatives →

  3. 3

    Discover and enumerate all subdomains associated with a website, including those not publicly advertised. Use this tool to conduct thorough security assessments, validate your organization's digital footprint, or enhance your reconnaissance capabilities for penetration testing and bug bounty hunting

    2024 · github.com · its alternatives →

  4. 4

    Hi all, I've talked about glidesort a few times on HN already, but it's finally ready for release. If you have any questions, feel free to ask. An academic paper on glidesort that goes into a lot more detail than the readme is upcoming, but is not ready yet. I will be giving a talk on glidesort tomorrow at FOSDEM 2023 in the Rust Devroom at 16:10, you can seek me out there as well. In other news, I am leaving academia soon, so if you have interesting (Rust) jobs the coming months feel free to approach me.

    2023 · github.com · its alternatives →

  5. 5

    I built a DNS resolver that lets me use https://frontend.numa instead of localhost:5173 — auto-generated TLS certs, WebSocket passthrough, path routing. No mkcert, no nginx, no /etc/hosts.

    Apr 2026 · github.com · its alternatives →

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    A high-performance observability data pipeline. Contribute to vectordotdev/vector development by creating an account on GitHub.

    2019 · github.com · its alternatives →

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    Common data structures and algorithms in Rust. Contribute to EbTech/rust-algorithms development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  8. 8

    A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration) - blechschmidt/massdns

    2016 · github.com · its alternatives →

  9. 9

    An implementation of a dynamic programming language in Rust. Includes: Parser/Compiler, REPL, Virtual Machine, Bytecode Disassembler This started out as a learning project to teach myself Rust. It has grown into a decently substantial piece of software and I've learned quite a bit in the process! Some neat things: + A garbage collector that can store dynamically sized types without any double-indirection (i.e. I have my own Box implementation with manual alloc/dealloc) + The smart pointer used to reference GCed data is a thin pointer. The ptr metadata needed for DSTs is stored in…

    2022 · github.com · its alternatives →

  10. 10AF

    Serialization framework with some interesting numbers: 10-20x faster on nested objects than json/protobuf. Technical approach: compile-time codegen (no reflection), compact binary protocol with meta-packing, little-endian layout optimized for modern CPUs. Unique features that other fast serializers don't have: - Cross-language without IDL files (Rust ↔ Python/Java/Go) - Trait object serialization (Box) - Automatic circular reference handling - Schema evolution without coordination Happy to discuss design trade-offs. Benchmarks:…

    Oct 2025 · fory.apache.org · its alternatives →

  11. 11

    The Elegant Parser. Contribute to pest-parser/pest development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  12. 12

    Hello! I got quite some feedback on a web server I'm building, so I'm rewriting the server to be faster and easier to use. I (and maybe some other contributors?) have optimized the web server performance, especially for static file serving and reverse proxying (the last use case I optimized for very recently). I also picked a different configuration format and specification, what I believe is easier to write. Automatic TLS is also enabled by default out of the box, you don't need to even enable it manually, like it was in the original server I was building. Yesterday, I released the first…

    2025 · ferron.sh · its alternatives →

  13. 13

    This is rust library for deconstructing SPF DNS records. Written ha a project to learn some of the basics of rust.

    2023 · github.com · its alternatives →

  14. 14

    Subscan is a Go-based CLI tool that helps bug bounty hunters and pentesters with subdomain discovery (passive and brute-force), scoring (HTTP/TLS/CNAME), and misconfig probes (takeovers, open .envs, S3 buckets, etc). Output formats include JSON/CSV/HTML/Markdown. GitHub: https://github.com/omerimzali/subscan Looking for feedback!

    2025 · github.com · its alternatives →

  15. 15

    hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…

    Jul 2026 · search.cerast-intelligence.com · its alternatives →

  16. 16

    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 · its alternatives →

  17. 17

    Oh my implementation of Shadowsocks in Rust. Contribute to loggerhead/shadowsocks-rust development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  18. 18

    Hey HN, My friend Sam and I were bored one weekend, and wanted to make something self-contained but still useful. We ended up with Victor [0], a vector database designed to run in the browser. It’s written in Rust, which gives us access to things like super-fast and compact serialization and deserialization, but it’s compiled to WASM and uses web-sys to interact with the browser’s JS APIs to write the database contents to disk. We worked hard on designing it in a way that makes sense for the browser. It uses the private origin file system [1] and stores the vectors in a compact format (one…

    2023 · github.com · its alternatives →

  19. 19

    Count lines of code quickly. Contribute to cgag/loc development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  20. 20

    I've been working on Fast LiteLLM - a Rust acceleration layer for the popular LiteLLM library - and I had some interesting learnings that might resonate with other developers trying to squeeze performance out of existing systems. My assumption was that LiteLLM, being a Python library, would have plenty of low-hanging fruit for optimization. I set out to create a Rust layer using PyO3 to accelerate the performance-critical parts: token counting, routing, rate limiting, and connection pooling. The Approach - Built Rust implementations for token counting using tiktoken-rs - Added lock-free data…

    Nov 2025 · github.com · its alternatives →

  21. 21SA

    Hi everyone, I've made an open-source library for fast spatial search in Rust. It's called Spart, and it currently provides the following features: - Five tree implementations: Quadtree, Octree, Kd-tree, R-tree, and R*-tree - Python bindings (`pyspart` on PyPI) - Fast k-nearest neighbor (kNN) and radius search - Bulk data loading for efficient tree construction Project's GitHub repo: https://github.com/habedi/spart

    2025 · its alternatives →

  22. 22

    Contribute to dohuyhoang93/DeepSearch development by creating an account on GitHub.

    Dec 2025 · github.com · its alternatives →

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  24. 24

    Free subnet calculator for IPv4 and IPv6. Get the network address, broadcast, mask, wildcard and usable host range instantly. CIDR cheat sheet included.

    2016 · subnet.im · its alternatives →

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