Assertible
Website security software
Web security software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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$25 per month
Free TrialFree version
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What is Assertible
Assertible is an API and website monitoring platform used to validate that web services behave as expected and remain available. Teams use it to run scheduled or on-demand checks against HTTP endpoints, validate response codes and payloads, and receive alerts when checks fail. It focuses on functional and uptime monitoring rather than acting as an in-line security control such as a WAF or DDoS mitigation service.
API-focused synthetic monitoring
Assertible is designed around HTTP/API checks, including validating status codes, headers, and response bodies. This fits teams that need continuous verification of API behavior beyond basic ping or page-load monitoring. It can be used to monitor internal and external endpoints from a single place.
Automated alerting on failures
The product supports alerting when checks fail, helping teams detect outages or regressions quickly. This is useful for operational monitoring of customer-facing web services and critical integrations. It complements security programs by surfacing availability and unexpected behavior issues that can indicate incidents.
Lightweight setup for endpoints
Endpoint checks can typically be configured without deploying agents, since monitoring is performed over HTTP(S). This reduces rollout friction for distributed teams and microservice environments. It is well-suited for validating third-party APIs and SaaS dependencies where agents are not possible.
Not a WAF or DDoS layer
Assertible does not sit in front of applications to block attacks, rate-limit traffic, or provide bot mitigation. Organizations needing in-line protection generally require additional web security controls. It is better positioned as monitoring/validation rather than perimeter defense.
Limited vulnerability scanning depth
Compared with dedicated web vulnerability scanners and pentest automation tools, Assertible is not primarily built to discover OWASP-style vulnerabilities through crawling and attack simulation. It can validate expected responses but does not replace security testing pipelines. Teams typically pair it with separate scanning and remediation workflows.
Security reporting may be basic
For compliance-driven programs, monitoring outputs may not provide the same breadth of security dashboards, risk scoring, or audit-ready reporting as specialized application security platforms. This can increase reliance on external reporting and SIEM/SOAR integrations. Fit depends on how much governance and evidence collection is required.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Personal (Free) | $0 per month | Web services: 2; Tests per service: 10; Result retention: 1,000; Members: 1–2; Schedule frequency: Standard (2 monitors); "Join Assertible for free" (permanent free tier). |
| Standard | $25 per month | Web services: 25; Tests per service: 500; Result retention: 5,000; Members: 1; Schedule frequency: Upgraded; Includes 1 month free trial for paid plans. |
| Startup | $50 per month | Web services: 25; Tests per service: 500; Result retention: 5,000; Members: 10; Schedule frequency: Upgraded; Includes 1 month free trial for paid plans. |
| Business | $100 per month | Web services: 50; Tests per service: 1,000; Result retention: 10,000; Members: 20; Schedule frequency: Upgraded; Includes 1 month free trial for paid plans. |
Notes: Pricing shown on the vendor site is listed as monthly rates. The vendor states there is only one monthly charge per account (no per-user fees) and that paid plans currently offer a 1-month free trial.
