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SpiderFoot HX is listed from $62.42 and has a free plan, but the case for leaving is not backed by much public user feedback. The detailed r/OSINT question published here is about interpreting co-hosted certificate results. There is no clear like-for-like replacement in this shortlist. Nessus is closest if your need is vulnerability scanning; the rest shift toward firewalls, DNS, DDI or zero-trust networking. Pick by workflow, not by name.
01Why people leave SpiderFoot HX
Co-hosted results need interpretation
One r/OSINT thread asks what co-hosted certificate results mean. A commenter says a shared certificate can reflect common hosting or a deeper relationship.
Public user feedback is sparse
The Reddit discussion we read includes one question about certificate results and a thread title about investigating a scam, but little detail about recurring product problems.
Product details are hard to assess
The published product summary says details conflict, making it difficult to judge SpiderFoot HX against alternatives on features and value.
02The alternatives, ranked by fit
- Vulnerability scanning
NessusNessusIf SpiderFoot HX is part of a security-recon workflow and you need vulnerability coverage instead, Nessus is the clearest adjacent pick here. It is listed for teams scanning varied network assets and web apps, with unlimited vulnerability scans. The listed starting price is $399.17; the product summary also flags a $4,790 entry license, so confirm the billing basis before comparing costs.
Trade-off: It is a vulnerability scanner, not a like-for-like OSINT replacement, and the entry license is a serious commitment.
6.5/10from
$399.17/mo - Firewall and VPN
pfSense PluspfSense PlusConsider pfSense Plus if your reason for leaving is a need to manage network traffic rather than investigate targets. It is listed for Netgate appliance buyers and AWS or Azure firewall deployments, with VPN and VPC connectivity. The starting price is $10.75 and a free plan is listed. Check the full bill and upgrade terms before switching.
Trade-off: It shifts the job to firewall and connectivity management, not OSINT scanning.
6.7/10from
$10.75/mofree plan - Commercial firewall firmware
OPNsense Business EditionOPNsense Business EditionOPNsense Business Edition may fit if you want a commercial firmware repository or business features instead of SpiderFoot HX’s scanning workflow. The listing also names multi-installation operators considering OPNcentral. It starts at $11.08. That price alone does not establish total cost, so weigh the upfront spend against the features your team actually needs.
Trade-off: It is a firewall-focused switch, and the commercial firmware may be unnecessary for your needs.
7.3/10from
€11.08/mo - Zero-trust access
Zscaler Zero Trust ExchangeZscaler Zero Trust ExchangeIf you are leaving SpiderFoot HX to consolidate security controls, Zscaler Zero Trust Exchange is aimed at organizations consolidating zero-trust controls, securing private app access and protecting AI deployments. That is a different problem from OSINT scanning. Pricing is not published, and the listing flags meaningful access limits, so ask for a quote and confirm scope before committing.
Trade-off: Pricing is not published, and access limits need checking; it does not replace OSINT scanning.
6.3/10from
Custom - Cloud security platform
Zscaler Cloud IPSZscaler Cloud IPSZscaler Cloud IPS is worth considering if your team is already evaluating Zscaler or wants a broader security platform. The listing points buyers toward custom quotes and does not give a public starting price. It is not presented as an OSINT tool, so switching makes sense only if the goal is a different security capability. Get the Cloud IPS scope in writing.
Trade-off: No public price or detailed scope is listed; request both before comparing.
5.5/10from
Custom - Enterprise firewall
Check Point Quantum Security GatewaysCheck Point Quantum Security GatewaysCheck Point Quantum Security Gateways is listed for enterprises seeking hardware firewalls and hybrid on-premises and cloud environments. It may suit a team whose priority has moved from OSINT investigation to enterprise network security. Pricing is quote-only, and public product detail is limited, so ask for a scoped quote and verify which subscriptions are included.
Trade-off: Quote-only pricing and limited public detail make cost and scope harder to assess.
6.5/10from
Custom - DDI management
BlueCat EdgeBlueCat EdgeBlueCat Edge is a better fit if your team needs to manage DDI across cloud and on-premises environments, connect remote branches or automate DDI through APIs. Those are distinct infrastructure needs, not a direct substitute for SpiderFoot HX. Pricing and limits are opaque in the published summary, so ask for both before treating it as a comparable option.
Trade-off: Pricing and limits are opaque, and the product targets DDI rather than OSINT.
5.8/10from
Custom - Private networking
ZeroTierZeroTierZeroTier fits teams replacing complex VPN setups, personal users with up to 10 devices, or organizations needing air-gapped networking. It starts at $18 and has a free plan listed. Choose it only if your underlying need is private networking rather than SpiderFoot HX’s scanning use case; check the 10-device limit and business entry price.
Trade-off: The 10-device limit and $18/month business entry price may not fit your team.
7.4/10from
$18/mofree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 SpiderFoot HX SpiderFoot HX (current) | 5.8 | $62.42/mo | Yes | Researchers exploring basic scanning |
| Nessus Nessus | 6.5 | $399.17/mo | No | Teams needing unlimited vulnerability scans |
| pfSense Plus pfSense Plus | 6.7 | $10.75/mo | Yes | Netgate appliance buyers |
| OPNsense Business Edition OPNsense Business Edition | 7.3 | €11.08/mo | No | Teams wanting a commercial firmware repository |
| Zscaler Zero Trust Exchange Zscaler Zero Trust Exchange | 6.3 | Custom | No | Organizations consolidating zero trust controls |
| Zscaler Cloud IPS Zscaler Cloud IPS | 5.5 | Custom | No | Organizations already considering Zscaler |
| Check Point Quantum Security Gateways Check Point Quantum Security Gateways | 6.5 | Custom | No | Enterprises seeking hardware firewalls |
| BlueCat Edge BlueCat Edge | 5.8 | Custom | No | Teams managing DDI across cloud and on-premises |
| ZeroTier ZeroTier | 7.4 | $18/mo | Yes | Teams replacing complex VPN setups |
Questions people ask
Which SpiderFoot HX alternative is closest for security scanning?
Nessus is the closest option in this shortlist if you need vulnerability scanning: it is listed for varied network assets and web apps, with unlimited vulnerability scans. It is not a like-for-like OSINT replacement. If your goal is firewall, DDI or private-network management, compare the other picks by that specific workflow.
How much does SpiderFoot HX cost, and are there free alternatives?
The published SpiderFoot HX listing says it starts at $62.42 and has a free plan; it does not specify the billing period. This shortlist also lists free plans for pfSense Plus and ZeroTier. Check each vendor’s current pricing and plan limits before comparing totals.
What does a co-hosted certificate result mean in SpiderFoot HX?
A commenter on an r/OSINT thread says co-hosted sites share an SSL certificate with the target. That can indicate common hosting or a service such as Cloudflare, or it may point to a closer relationship between organizations. The result alone does not establish a connection.