Similarweb

similarweb.com

3 tracked vendors name Similarweb as a subprocessor, including ClickUp™, HUMAN Security and WebFX. We have not found a subprocessor list published by Similarweb. We monitor 4 of its documents, which we last checked on Nov 11, 2026.

Subprocessors

None extracted.

Web TechnologiesCSV of Similarweb's web technologies · Atom feed of Similarweb's web technologies

Similarweb's homepage made 234 requests to 33 domains, 21 services controlled by another company, and 1 domain not identified.

Analytics (10): Knock Connection Inc., TikTok, Limy AI, LinkedIn, Meta, Baidu, Cloudflare, TikTok; reviewed: Mixpanel; usually detected as Analytics: G2.comAdvertising (3): Google Cloud, Microsoft, OpenAILive chat (1): Qualified.com, Inc.A/B Testing (1): GrowthBookCookie compliance (1): CookiebotCDN (1): jsDelivrOther (4): Accessibility: Userway; Appointment scheduling: Chili Piper; usually detected as Issue trackers: Sentry; Security: Amazon Web Services

21 third parties by category: Analytics 10Advertising 3Live chat 1A/B Testing 1Cookie compliance 1CDN 1Other 4

Third parties 21 · 158 requests
Google Cloud DoubleClick Floodlight Google Analytics Google Sign-in Google Tag Manager 23% of the page's requests 53
Qualified.com, Inc. Qualified 11% of the page's requests 26
Userway UserWay 6% of the page's requests 13
Microsoft Microsoft Advertising 5% of the page's requests 11
Amazon Web Services AWS WAF Bot Control 3% of the page's requests 8
Knock Connection Inc. Knock AI 3% of the page's requests 8
TikTok TikTok Pixel 3% of the page's requests 7
Mixpanel mixpanel.com 2% of the page's requests 5
Cookiebot Cookiebot 1 2% of the page's requests 4
OpenAI ChatGPT Ads Measurement Pixel 2% of the page's requests 4
Limy AI Limy 1% of the page's requests 3
LinkedIn Linkedin Insight Tag 1% of the page's requests 3
Meta Facebook Pixel 2.9.435 1% of the page's requests 3
G2.com g2.com <1% of the page's requests 2
GrowthBook GrowthBook <1% of the page's requests 2
Baidu Baidu Analytics (百度统计) <1% of the page's requests 1
Chili Piper Chili Piper <1% of the page's requests 1
Cloudflare Cloudflare Browser Insights <1% of the page's requests 1
Sentry sentry.io <1% of the page's requests 1
TikTok TikTok Pixel <1% of the page's requests 1
jsDelivr FingerprintJS 2.1.4 jsDelivr <1% of the page's requests 1
Unknown 1 · 2 requests

d2c7xlmseob604.cloudfront.net

First party 1 · 72 requests
Similarweb Amazon CloudFront Amazon Web Services Cybot Google Font API HSTS Kestrel Loadable-Components Matomo Analytics Microsoft ASP.NET Microsoft Clarity Open Graph Priority Hints React 17.0.2 Sentry Swiper core-js 3.32.2 31% of the page's requests 72

16 tracked companies loaded by the homepage are not in Similarweb's subprocessor list. A website can use a service without it processing customer data.

Subprocessor of (3)CSV of the companies listing Similarweb · Atom feed of the companies listing Similarweb

3 companies
  • ClickUp™ clickup.com Business Intelligence (BI) Analytics
  • HUMAN Security humansecurity.com Logging and Monitoring
  • WebFX webfx.com Competitor Tracking; Used to provide data on client competitors.

ComplianceCSV of Similarweb's compliance · Atom feed of Similarweb's compliance

Certified
Says it complies with

Security program

How Similarweb says it manages cybersecurity risk, in its annual report to the SEC.

Led by
Chief Information Security Officer · 20+ years of experience
quote Our management team has extensive experience in managerial, information technology, information security, and cyber skills and we have employed a professional in the position of chief information security officer, or CISO, since 2020.Our current CISO joined us in 2023 and has over 20 years of experience in various security disciplines.
Board oversight
Audit Committee
quote Our Board considers cybersecurity risk as part of its risk oversight function and has delegated to the Audit Committee oversight of cybersecurity and other information technology risks.
Frameworks named
  • NIST CSF
  • ISO 27001
  • SOC 2
quote We design and assess our program based on the National Institute of Standards and Technology Cybersecurity Framework, or NIST CSF.commission annual audits of our information security policies and practices with industry security standards and maintain ISO/IEC 27001 certification and SOC 2 Type II report.
Outside review
Engages outside assessors or consultants
quote promote and operate a bug bounty program which invites external security experts to identify potential security vulnerabilities and enables us to continuously improve our security posture and the security of our platform.
Its own suppliers
Reviews their security
quote a third-party risk management process for service providers, suppliers, and vendors.
Practices named
  • Incident response plan
  • Tabletop exercises
  • Penetration testing
  • Bug bounty
  • Threat intelligence
  • Security training
  • Phishing simulations
Material incidents
None so far, it says
quote We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition.
Read Item 16K in full

Cybersecurity Risk Management and Strategy

We have developed and implemented a cybersecurity risk management program intended to protect the confidentiality, integrity, and availability of our critical systems and information. Our cybersecurity risk management program is designed to assess, identify, and manage material risks from cybersecurity threats and includes a cybersecurity incident response plan.

We design and assess our program based on the National Institute of Standards and Technology Cybersecurity Framework, or NIST CSF. This does not imply that we meet any particular technical standards,

specifications, or requirements, only that we use the NIST CSF as a guide to help us identify, assess, and manage cybersecurity risks relevant to our business.

Our cybersecurity risk management program is integrated into our overall enterprise risk management program, and shares common methodologies, reporting channels and governance processes that apply across the enterprise risk management program to other legal, compliance, strategic, operational, and financial risk areas. As part of this process, we gather input from subject matter specialists, as necessary, to obtain insights to help identify and assess material cybersecurity threat risks, as well as potential severity and mitigation measures.

Our cybersecurity risk management program includes:

•risk assessments designed to help identify material cybersecurity risks to our critical systems, information, products, services, and our broader enterprise IT environment;

•a security team principally responsible for managing (1) our cybersecurity risk assessment processes, (2) our security controls, and (3) our response to cybersecurity incidents;

•the use of external service providers, where appropriate, to assess, test or otherwise assist with aspects of our security controls;

•periodic cybersecurity awareness training of our employees and incident response personnel;

•a cybersecurity incident response plan that includes procedures for responding to cybersecurity incidents; and

•a third-party risk management process for service providers, suppliers, and vendors.

We also conduct the following activities at various intervals during the year, which vary in maturity across our business:

•monitor emerging data protection laws and implement changes from time-to-time to our processes designed to comply;

•undertake regular reviews of our customer facing policies and statements related to cybersecurity;

•through policy, practice, and contract (as applicable) require employees, who provide services on our behalf, to treat customer information and data with care;

•leverage the NIST CSF incident handling framework to help us prepare, detect, analyze, contain, eradicate, respond, and recover when there is an actual or potential cybersecurity incident;

•commission annual audits of our information security policies and practices with industry security standards and maintain ISO/IEC 27001 certification and SOC 2 Type II report.

•engage our Internal Auditor to conduct internal reviews of our cybersecurity policies and practices and a third party to perform annual penetration testing to our production environments.

•promote and operate a bug bounty program which invites external security experts to identify potential security vulnerabilities and enables us to continuously improve our security posture and the security of our platform.

•conduct a variety of information security and privacy trainings, including new employee training, job-specific security training, specialized training for IT and security personnel, and phishing simulations.

•run annual tabletop exercise to train our executives and increase their cybersecurity awareness.

•carry information security risk insurance to help defray potential losses that might arise from a cybersecurity incident.

We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition.

Cybersecurity Governance

Our Board considers cybersecurity risk as part of its risk oversight function and has delegated to the Audit Committee oversight of cybersecurity and other information technology risks. The Audit Committee oversees management’s implementation of our cybersecurity risk management program.

The Audit Committee receives regular reports from management on our cybersecurity risks. In addition, management updates the Audit Committee, as necessary, regarding any material cybersecurity incidents.

The Audit Committee reports to the full Board regarding its activities, including those related to cybersecurity. The full Board also receives briefings from management on our cyber risk management program.

Members of the Board and Audit Committee are also encouraged to regularly engage in ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. if applicable Material cybersecurity threat risks are also considered during separate Board meeting discussions of important matters like enterprise risk management, operational budgeting, mergers and acquisitions, and other relevant matters.

Our management team is responsible for assessing and managing our material risks from cybersecurity threats and is primarily responsible for our overall cybersecurity risk management program. Our management team has extensive experience in managerial, information technology, information security, and cyber skills and we have employed a professional in the position of chief information security officer, or CISO, since 2020. Our current CISO joined us in 2023 and has over 20 years of experience in various security disciplines. The CISO's expertise and our security team enable us to navigate the complex landscape of cybersecurity and keep up with emerging threats as technology continues to evolve.

Our management team supervises efforts to prevent, detect, mitigate, and remediate cybersecurity risks and incidents through various means, which may include briefings from internal security personnel; threat intelligence and other information obtained from governmental, public or private sources, including external consultants engaged by us; and alerts and reports produced by security tools deployed in the IT environments.

As of the date of this Annual Report, the Company is not aware of any cybersecurity threats, including as a result of any previous cybersecurity incidents, that have materially affected or are reasonably likely to materially affect the Company, including its business strategy, results of operations or financial condition. For additional information concerning risks related to cybersecurity, see Item 3.D. Risk Factors.

Certifications as Similarweb's trust center lists them; reports are usually shared on request (evidence) Security program from SIMILARWEB LTD.'s Form 20-F for fiscal 2025, filed Mar 2, 2026, Item 16K, in its words (evidence)

ChangesCSV of Similarweb's changes · Atom feed of Similarweb's changes

None since tracking began.

Rating badge for Similarweb's site

Similarweb transparency rating

It updates with the rating.

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