Dev tools · alternatives · 2026
24 alternatives to Externalsight
Find exposed assets before attackers find them
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Glasstrail ▲8See your external attack surface the way adversaries do
2025 · glasstrail.com · its alternatives →
- 2
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 →
- 3OP
2017 · latency.at · its alternatives →
- 4
Your digital assets exposed to the internet create threats.
2021 · swordeye.io · its alternatives →
- 5
Monitor domain settings, SSL certificates, expiration dates
2022 · observe.domains · its alternatives →
- 6
- 7
- 8
Attackers Shouldn't Have the Information Advantage
2024 · flare.io · its alternatives →
- 9
Scan your domain. See what attackers see.
Aug 2026 · threatlocator.com · its alternatives →
- 10
AISight▲32Understand how AI answer engines see your website
Jul 2026 · aisight.thearchon.eu · its alternatives →
- 11
Free attack surface monitoring and risk management solution
2021 · control.coalitioninc.com · its alternatives →
- 12
Chainsight▲86Access web3 insights and secure your crypto assets
2023 · chainsight.com · its alternatives →
- 13
- 14
Add OSINT & Threat tooltips to all pages. Use any REST API!
2017 · github.com · its alternatives →
- 15
Detect domain security issues before they hurt your business
May 2026 · domainscan.tools · its alternatives →
- 16
See the potential security risk for every site you visit
2022 · securityscorecard.com · its alternatives →
- 17
Know what the internet knows about you
Jul 2026 · asmscan.com · its alternatives →
- 18
We scan the entire internet to show what is exposed.
2018 · help.coalitioninc.com · its alternatives →
- 19
Comprehensive web attack surface discovery & analysis
2025 · threatscan.ai · its alternatives →
- 20
AttackerView▲13Last week I wrote about building a scanner that writes its own exploits. A cron job runs Claude Code every night, it reads new CVEs, writes proof-of-concept checks, tests them against vulnerable and patched Docker instances, and opens PRs. I review and merge in the morning. That post was about how t
Feb 2026 · attackerview.com · its alternatives →
- 21
- 22
Domain Security Risk Intelligence
Jun 2026 · domain-beacon.cvaatsolutions.com · its alternatives →
- 23
World's Largest Exploit Database
2023 · exploit.observer · its alternatives →
- 24
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →