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Application security

Web, API, mobile and source code

Infrastructure and cloud

Networks, cloud platforms, external perimeter

Adversary simulation

Goal-driven attacks against people, process and technology

AI, Web3 and cryptography

LLM applications, smart contracts, cryptographic design

Programs and assurance

Bug bounty, disclosure, continuous and compliance testing

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Free website security check

An external security check of one website, free of charge, with a report that is paid only when vulnerabilities are found.

Check my website for freeTerms of the free website security check

Application security

Most owners do not know whether their website can be broken into until it happens. A penetration test answers that question in depth, but it is a project with a budget. The free check is the first step: it shows whether an attacker who knows nothing about you finds a way in.

We look at the website from the outside, without accounts and without access to your server, and check what is visible and reachable from the internet. If we find nothing, you receive a report that says so, free of charge. If we find vulnerabilities, we tell you how many there are and how serious they are, and you decide whether to buy the report with the details and the fixes.

01Scope

What we test

  • HTTPS and TLS: protocol versions, certificates, redirects
  • Security headers and cookie attributes
  • Exposed files and interfaces: backups, configuration files, version control folders, administration panels, debug pages
  • Content management system, plugins, frameworks and server software with known vulnerabilities
  • Public forms and parameters: injection and cross-site scripting, tested with harmless probes
  • Login, registration and password recovery pages: protection against guessing and enumeration
  • Information disclosed by error messages, source maps and metadata
  • Domain records that protect against forged email: SPF, DKIM, DMARC

02Approach

How the work is done

  1. Request and authorisation

    You name the website and confirm that you own it or act for its owner. Before the check starts, the owner, or a person the owner has authorised, signs an authorisation that lists the address and the dates of the check.

  2. Check

    Tools map the website, and specialists verify every suspicion by hand and discard false alarms. There are no destructive actions, no load tests and no attempts to read the data of your visitors.

  3. Result

    You receive the result in 1 to 5 business days after the authorisation is signed. No vulnerabilities: the report is free of charge. Vulnerabilities found: a notice with their number, their severity on the CVSS 4.0 scale and the price of the report.

  4. Report and retest

    You receive the report immediately after payment: every finding with evidence, steps to reproduce it and a fix. Once the fixes are in place, we retest every finding free of charge.

Methodology

03

What you receive

  • Without findings: a report that states what was checked, when, by which method and with what result
  • With findings: a notice with the number, the severity and the evidence of the findings, free of charge
  • Paid report: every finding with evidence, CVSS 4.0 vector, CWE class and fix
  • A free retest of every finding after the fixes, requested within 60 days of the report

04

What we need from you

  • The address of the website
  • An authorisation signed by the owner of the website or by a person the owner has authorised
  • A contact person who can be reached during the check
  • The consent of the hosting provider, where its rules require one

05Standards

Standards behind the method

06Questions

Questions about this service

Why is the check free?

Because we are paid for a result. A website without vulnerabilities costs its owner nothing; a website with vulnerabilities gives us a report that is worth buying. It is the principle of bug bounty, applied to your website with your permission.

What if we decide not to buy the report?

Then you owe nothing. What we found stays confidential: we pass it to no one and publish nothing.

How is the price of the report determined?

By the number of the findings and their severity on the CVSS 4.0 scale. The price is stated in the notice, before you decide, and stays valid for 30 days.

Do you need access to our server?

No. The check is done from the outside, the way a visitor sees the website. Testing with accounts and roles is a separate service, web application penetration testing.

Can the check harm the website?

The check contains no destructive actions and no load tests. If the website becomes unstable, we stop and contact you.

08Request

Tell us what needs testing

  • Website check free of charge
  • Reply within 1 business day
  • NDA before any technical detail
  • Fixed price for paid engagements
  • No obligation

Request an assessment

Describe the systems and the goal. A manager replies within 1 business day with clarifying questions and the next step.

Who to reply to

We reply to this address unless you choose another channel.

A sole proprietor writes their own name.

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What to assess
Services of interest

Choose all that apply.

Free check

We check your website free of charge

If we find no problems, you receive the report free of charge as well. You pay for the report only when we find problems, and its price depends on their number and severity.

Terms of the free website security check

Application security

Infrastructure and cloud

Adversary simulation

AI, Web3 and cryptography

Programs and assurance

Application security

Free website security check

We look at your website from the outside, the way an attacker does, and check whether it can be broken into: weak settings, outdated software, exposed files, unsafe forms. The check is free of charge.

More about the service

Application security

Web application penetration testing

We try to break into your web application the way a real attacker would: log in to the accounts of other people, read the data of other customers, change prices or orders. You learn what is possible before criminals do.

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Application security

API security testing

An API is the channel through which your app, your website and your partners exchange data with your servers. We check that nobody can use it to read or change data that is not theirs.

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Application security

Mobile application penetration testing

We examine your iOS or Android app and the servers behind it: what the app keeps on the phone, what can be extracted from it and whether its requests can be tampered with.

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Application security

Secure code review

Our specialists read the source code of your product and find the mistakes that lead to a break-in, including those that cannot be seen from the outside.

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Infrastructure and cloud

Cloud & Kubernetes security assessment

We check how your cloud is set up (AWS, Azure, Google Cloud, Kubernetes): who has access to what, which data is open to the internet and how far an attacker gets after the first mistake.

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Infrastructure and cloud

Infrastructure penetration testing

We test your servers and your office network from the outside and from the inside: can an attacker get in, and once inside, reach the accounting system, the mail or the backups.

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Infrastructure and cloud

External attack surface assessment

We find everything your company exposes to the internet, including what has been forgotten: old websites, test servers, leaked passwords. Then we show which of it can be attacked.

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Infrastructure and cloud

CI/CD & supply chain security

We check the path your code takes from the developer to the customer: build servers, third-party libraries, access keys. Whoever controls that path controls your product.

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Adversary simulation

Red team operations

A full-scale exercise. Our team plays a real attacker with a goal, for example to reach customer data, and you see whether your defence notices and stops it.

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Adversary simulation

Purple team exercises

Our attackers and your defenders work side by side: we show an attack technique, your team checks whether it sees it, and the gaps in monitoring are closed on the spot.

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Adversary simulation

Social engineering assessment

We test people, not machines: the phishing emails, calls and messages that attackers use to obtain passwords. You learn how many employees would be deceived and what to train.

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AI, Web3 and cryptography

AI & LLM security testing

If your product has a chatbot or another AI model, we check whether it can be talked into revealing confidential data, breaking its own rules or acting on behalf of someone else.

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AI, Web3 and cryptography

Smart contract audit

Before a smart contract holds money, we look for mistakes in its code that would let someone withdraw or freeze the funds. After deployment such mistakes cannot be corrected.

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AI, Web3 and cryptography

Cryptography review

We check how your product encrypts data and protects keys: whether the right algorithms are chosen and whether they are applied correctly. A mistake here makes the encryption useless.

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Programs and assurance

Bug bounty program management

A bug bounty is a program in which independent researchers look for vulnerabilities in your product and are paid for each one they find. We launch and run such a program for you.

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Programs and assurance

Vulnerability disclosure program (VDP)

A public page and a procedure that tell researchers how to report a vulnerability to you safely. Without them reports get lost or arrive as threats. We set the process up and handle incoming reports.

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Programs and assurance

Continuous penetration testing

Instead of one test a year, we test every significant change of your product throughout the year, so that a new vulnerability does not wait for months to be found.

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Programs and assurance

Compliance-driven penetration testing

A penetration test arranged so that an auditor, a regulator or a large customer accepts its report: PCI DSS, DORA, NIS2, ISO/IEC 27001, SOC 2.

More about the service

Services of interest

Not sure yet

Choose this if you do not know which service you need. Describe the task in your own words, and a specialist will suggest the service in the reply.

Domain or URL of the website or of the main system to test, for example app.example.com.

What needs testing, why now, and any deadline or compliance requirement. No passwords, keys or vulnerability details.

Confirmations

Do not send credentials, keys or details of a vulnerability through this form. A secure channel is agreed after the first reply.

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