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SubDomains Finder Review

Worth it

Should I use SubDomains Finder?

The #1 subdomain finder and scanner. Instantly discover all subdomains of any domain, no install required. - subdomainsfinder.com

· 1 month ago

Buy if you need fast, free subdomain recon with IPs, ports, and ASN data and accept passive OSINT results. Skip it if you need guaranteed-fresh scanning, vendor security documentation, or support — use Shodan or Pentest-Tools instead.

Confidence

Medium. Based on ~20 public sources: official pages, Apify listings, and directories. No independent reviews or security findings found.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support evidence in sources
  • Security posture

Pricing

$0

Free web tool

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
API via Apify actorsfrom $0.005/domain

Best for

  • Bug bounty hunters
  • Pentesters doing recon
  • OSINT researchers
  • IT admins auditing their own attack surface

Not for

  • Enterprises needing continuous attack-surface monitoring with SLAs
  • Teams needing active deep scanning — it aggregates OSINT only, no target scanning
  • Buyers requiring vendor security docs, SOC2, or procurement-grade assurance
  • Anyone wanting guaranteed support — no reviews or support evidence exists

Gotchas - check before you buy

medium

API access runs through third-party Apify actors; pricing and reliability vary per actor, not official vendor pricing

medium

No substantive security page found — vendor risk checks may stall procurement

medium

No support-quality or review evidence anywhere in sources — you are on your own

low

Passive aggregation means stale subdomains; verify results with live DNS before acting

Pros and cons

Pros

  • Free online tool, no install required
  • Browser-based OSINT tool
  • Shows subdomains with IPs, open ports, ASN, hosting data
  • API route is cheap: $0.005 per domain, not per subdomain
  • Claims passive aggregation only — aggregates public data, does not scan targets

Cons

  • Aggregates OSINT only — results can be stale or incomplete
  • No independent user reviews found in sources
  • Markets via SEO competitor-alternative pages, not customer proof
  • Security page shows no content in sources reviewed

Sources & method

- 10 sources - No known vulnerabilities found in the sources reviewed.

official x5review x3security x1news x1

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 5/5. Free web tool; API from $0.005 per domain
  • Ease of use: 5/5. Browser-based OSINT, no install required
  • Feature depth: 4/5. Subdomains plus IP, ports, ASN, hosting data
  • Support quality. No support evidence in sources
  • Security posture: 3/5. Claims passive aggregation; no security page evidence
  • $0.005/domain Starting price via third-party Apify actor
  • Yes Free tier web lookups, no signup
  • 101,414 subdomains Scale example indexed for pages.dev

Pricing

Free web tool

$0

  • Subdomain lookups in browser
  • IPs, ports, ASN, hosting data
  • No install required

API via Apify actors

from $0.005/domain

  • Pay-per-event, third-party actors
  • Realtime DNS subdomain scanning
  • CLI and MCP integrations

Security

No known vulnerabilities found in the sources reviewed.

What users say

Sources are mostly official pages, directories, and promotional LinkedIn posts — no independent user reviews were found.

Full analysis

Based on ~20 public sources: official pages, Apify listings, and directories. No independent reviews or security findings found.

Free, no-install subdomain lookup with IPs, ports, ASN. Great quick recon; weak for enterprises needing scans, SLAs, or support.

Methodology

Based on ~20 public sources: official pages, Apify listings, and directories. No independent reviews or security findings found.

Read how a report is made.

Sources

  1. SubDomains Finder — official sitesubdomainsfinder.com
    official
  2. Subdomainsfinder — pricing, use cases & alternativescostperseat.com
    review
  3. Subdomain Finder Apify actor ($0.005/domain)apify.com
    review
  4. Subdomains Finder API — Realtime DNS Subdomain Scannerapify.com
    official
  5. FAQ — SubDomains Findersubdomainsfinder.com
    official
  6. OSINT & Defense — SubDomains Findersubdomainsfinder.com
    official
  7. Security pagesubdomainsfinder.com
    security
  8. Shodan Subdomain Alternative pagesubdomainsfinder.com
    official
  9. Domain Digger — Subdomain Searchdigger.tools
    review
  10. Subdomainsfinder LinkedIn promo postlinkedin.com
    news

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