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HomeSIMILARWEB EXTENSION TERMS OF SERVICE

SIMILARWEB EXTENSION TERMS OF SERVICE

[Last Modified: December 26, 2025]

Thank you for choosing to install and use the Similarweb browser extension (“Extension“) provided by Similarweb Ltd. (“Company” or “we“, “us” or “our“).

These terms of service (“Terms of Service” or “Terms”), form a legally binding agreement between the Company and the users of our Extension and its associated services (“user” or “you“), and governs the downloading, installation, access and use of this Extension and the Services (as defined herein).

BY INSTALLING, ACCESSING OR OTHERWISE INTERACTING WITH OUR EXTENSION AND THE SERVICES THEREIN, YOU ACKNOWLEDGE THAT YOU HAVE READ THESE TERMS OF SERVICE AND AGREE TO BE BOUND BY AND TO FULLY COMPLY WITH THEM. YOU FURTHER AGREE TO COMPLY WITH ALL APPLICABLE LAWS AND REGULATIONS REGARDING YOUR USE OF THE EXTENSION AND THE SERVICES AND YOU ACKNOWLEDGE THAT THESE TERMS OF SERVICE CONSTITUTE A BINDING AND ENFORCEABLE LEGAL ELECTRONIC CONTRACT BETWEEN YOU AND US. PLEASE STOP YOUR USE OF THE SERVICES OR DISABLE OR REMOVE THE EXTENSION IF YOU DO NOT AGREE TO THESE TERMS OF SERVICE OR ANY PROVISION HEREIN YOU.

We reserve the right to periodically amend or revise these Terms of Service at our sole discretion; such changes will be effective immediately upon the display of the revised Terms. We recommend you periodically review and visit the Terms of Service. The last revision date will be reflected in the “Last Modified” heading. Your continued use of the Extension or Services following the notification of such amendments constitutes your acknowledgement and consent to the updated Terms of Services. In the event of material changes that will affect your use of the Extension, we will endeavor to provide you with notifications via the Extension, your account, or by email. Notwithstanding the above, changes to these Terms of Services will take effect immediately without prior notice where such changes are: (i) exclusively to your benefit; (ii) where they are of a purely administrative nature and have no negative effect on you; (iii) where they are directly imposed by law, or (iv) due to important security compliance or risk conditions.

  • OUR EXTENSION AND SERVICES

The Extension provides you with information on, and rankings of, the websites you browse and desktop-apps you use, and the insights we provide contain information about our analysis of the websites’ and apps popularity, traffic and rankings. The Extension will provide an analysis of the rates, ranks and popularity of the webpages you browse and apps you use (“Services”).

Our traffic data and related metrics provided to you through the Extension are based on data from various (direct and indirect) sources, and are calculated using a proprietary methodology that combines, among other things, a designated website’s estimated average of daily visitors and its estimated number of page views over time.

The Services, content, data and other information contained and or provided on or through the Extension is for informational purposes only. Although such information is believed to be reliable; the Company does not warrant its accuracy, timeliness or completeness.

  • LICENSE

Subject to your compliance with these Terms of Services, the Company hereby grants you a limited, non-exclusive, revocable license to install and use the Extension and the Services therein solely for your own personal use (“License”). Any other right not specifically granted under this Terms of Service is hereby excluded and reserved by the Company. We may update or otherwise modify the Extension and the Services therein, including their functionality and operation from time to time, and therefore may automatically update the Extension installed on your device or, if applicable, provide updates, which may contain patches, bug fixes, corrections, enhancements, plug-ins and new versions of the Extension which are performed automatically. Notwithstanding the above, the Company is under no obligation to maintain, support, upgrade or update the Extension, and may at any time, in its sole discretion and without prior notice, terminate or suspend your License, and disable the Extension installed on your device (all as detailed below in the Termination section below). In addition, your browser may periodically check for updates of all of your extensions, including our Extension, and such updates are governed by your browsers’ privacy policies and terms, which we recommend you review (such as Google Chrome Privacy Policy).

 

  • PERMITTED USE; RESTRICTIONS

Without limiting the foregoing, you shall not: (i) use the Extension or the Services for any purpose other than the purposes provided herein or in any way that violates these Terms of Services or for any purpose or in any manner that is unlawful or prohibited by these Terms of Services; (ii) directly or indirectly reverse engineer, decompile, disassemble or otherwise attempt to uncover or discover the source code, object code or underlying structure, ideas, know-how or algorithms relevant to the Extension and the Services or any software, documentation or data related to the Extension; (iii) disable, remove, damage, circumvent or otherwise tamper or interfere with any security-related features of the Extension, features that restrict or prevent unauthorized use or copying of any content accessible through the Extension, or features that enable, activate or enforce limitations on the use of the Services; (iv) modify, translate, or create derivative works based on the Extension and the Services; (v) sublicense, lease, rent, loan, distribute, sell, resell, or otherwise transfer the License granted herein or any documentation or materials contained in, on or with the Extension or the Services;  (vi) remove any proprietary notices or labels from the Extension or the Services; (vii) intentionally interfere with or damage the operation of the Services or any user’s enjoyment of them, by any means, including uploading or otherwise disseminating viruses, adware, spyware, worms, or other malicious code; (viii) use the Extension or Services in order to provide similar services to any third party or for competing with our Extension or the  Services; (ix) duplicate, reproduce, copy, transfer, sell, or otherwise exploit the Extension or the Services for any commercial purpose without the express, prior written consent of the Company; (x) use any robot, spider, scraper, or other automated means to access or monitor the Extension, the Company’s website available here, or the Services for any purpose; or (xi) use the Extension or Services for any illegal, immoral or unethical purpose, or in violation of any local, state, national, or international law. YOU HEREBY ACKNOWLEDGE THAT ANY USE OF THE EXTENSION OR THE SERVICES THEREIN THAT ARE IN BREACH OF THE RESTRICTIONS MENTIONED UNDER THIS SECTION, MAY RESULT, AT COMPANY’S SOLE DISCRETION, IN THE SUSPENSION OR TERMINATION OF YOUR ACCESS AND USE OF THE EXTENSION, AS WELL AS RESULT IN CIVIL AND CRIMINAL LIABILITY, SUBJECT TO APPLICABLE LAWS.

  • PRIVACY

We respect your privacy and take your privacy rights seriously. When installing our Extension and using the Services we will collect certain information about you: (i) automatically from your device, (ii) when provided voluntarily by you; or (iii) information that you will be required to provide for various purposes. Such information may be considered, under applicable data protection laws, as personal data. Therefore, our Privacy Policy, available here, on the Extension installation page and on the applicable extension store, explains the types of personal data we collect, the purposes for which it is being collected, how we collect it, with whom we share it, your various rights regarding your personal data, and additional disclosures which will allow you to better understand our data collection practices and make an informed decision prior to interacting with our Extension.

  • INTELLECTUAL PROPERTY

All content included in the Extension, including, without limitation, images, graphics, logos, text, button icons as well as the Services (“Content”), are the exclusive property of Company or its licensors and is protected by applicable copyright laws. Certain marks used on or in the Products or Services are registered trademarks or service marks of Company. Certain logos, graphics, scripts, button icons, page headers and service names are trademarks or service marks of Company or its affiliates. The Company’s trademarks and service marks may not, under any circumstances, be used for any commercial purposes or other purposes, by any party other than by the Company or its affiliates, without the express, prior written consent of Company. Additionally, any and all intellectual property rights, title and interest of any kind in and to the Extension, the Services, and the Content (excluding AI Materials as defined below) including, without limitations, tradenames, trademarks, logos and any and all modifications, upgrades, derivative works, know-how, technology methods, ideas and inventions, rights in software and computer code (whether in source code, object code or any other form) and all applications and registrations, are and shall remain the exclusive property of the Company and its licensors. 

When interacting with the Extension and the Services, the Company may have access to certain data you submit through artificial intelligence (AI) tools, such as ChatGPT , including uploaded files, attachments and images, (“Prompts”), and the outputs generated using such AI tool (“Outputs”), as well as  AI workflow metadata and execution details (“AI Workflow Data”),  your audio recordings of your interactions with voice features available within these platforms (such as voice prompts and searches, dictations, conversations, and other audio inputs) (“Audio Recordings”). The Prompts, Outputs, AI Workflow Data and Audio Recordings shall be referred to collectively herein as the “AI Materials”. By using the Extension and the Services you hereby: (i) acknowledge that you own the Prompts, AI Workflow Data and Audio Recordings and that you retain all rights including intellectual property rights within the AI Materials; and (ii) grant us a worldwide, non-exclusive right to store and use the AI Materials for research and development purposes. It is hereby clarified that it is your own responsibility to ensure that you have any and all rights required in order to be able to grant us the right to store and use such AI Materials. 

 

  • THIRD PARTY WEBSITES & TERMS

As part of the Services, we may provide information and Content without limitation and with respect to, third-party websites or webpages which are not under our control or responsibility (“Third-Party Content”). We do not endorse or make any guarantees with respect to such Third-Party Content or materials, or information accessible through or contained on such Third-Party Content. USE OF AND ACCESS TO THE THIRD-PARTY CONTENT, INCLUDING ANY SOFTWARE, SERVICES, MATERIALS, OR INFORMATION INCLUDED ON OR AVAILABLE THEREIN, IS MADE SOLELY AT YOUR OWN RISK. Most third party websites provide terms of use, privacy policies, and related legal documentation governing the access to and use of such Extensions, websites and apps, and their related services and content. We encourage you to review and consider these legal documents carefully, before accessing and interacting with any such Third-Party Content.

  • DISCLAIMER OF WARRANTIES; LIMITATION OF LIABILITY

THE COMPANY MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, AS TO THE FUNCTIONALITY OR PERFORMANCE OF THE EXTENSION, SERVICES OR THE CONTENT INCLUDED THEREIN (INCLUDING THIRD-PARTY CONTENT). YOU ACKNOWLEDGE AND AGREE THAT YOUR USE OF THE EXTENSION AND SERVICES AND ANY DECISION OR ACT TAKEN OR NOT TAKEN IN RELIANCE OF THE SAME ARE MADE AT YOUR OWN RISK. THE COMPANY DOES NOT REPRESENT OR GUARANTEE THAT THE EXTENSION OR SERVICES WILL BE ERROR-FREE, OR PERFORM UNINTERRUPTED, OR THAT THEY WILL PROVIDE SPECIFIC RESULTS OR CONTENT. THE EXTENSION, SERVICES AND CONTENT (INCLUDING THIRD-PARTY CONTENT) ARE PROVIDED ON AN “AS-IS” AND “AS-AVAILABLE” BASIS. THE COMPANY WILL NOT BE RESPONSIBLE OR LIABLE FOR ANY DAMAGES OR LOSSES OF ANY KIND ARISING FROM OR RELATED TO THE USE OF THE EXTENSION, OR SERVICES, INCLUDING WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUES OR BUSINESS OPPORTUNITIES, EVEN IF IT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, EXCEPT TO THE EXTENT THE EXCLUSION OR DISCLAIMER OF SUCH DAMAGES IS PROHIBITED BY APPLICABLE LAWS. TO THE FULLEST EXTENT PERMISSIBLE BY APPLICABLE LAW, THE COMPANY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, DATA ACCURACY, NONINFRINGEMENT, QUIET ENJOYMENT AND FREEDOM FROM VIRUSES OR OTHER HARMFUL CODE. THE COMPANY WILL NOT BE LIABLE UNDER ANY CIRCUMSTANCES FOR ANY DELAY, DIFFICULTY IN ACCESS OR USE, INACCURACY OF INFORMATION, COMPUTER VIRUSES, MALICIOUS CODE OR OTHER MALFUNCTION, DEFECT OR DEFICIENCY IN THE EXTENSION. CERTAIN LOCAL, STATE OR OTHER LAWS DO NOT ALLOW LIMITATIONS ON IMPLIED WARRANTIES OR THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES. IN THE EVENT AND TO THE EXTENT THESE LAWS APPLY TO YOU, SOME OR ALL OF THE ABOVE DISCLAIMERS, LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU, AND YOU MAY HAVE ADDITIONAL RIGHTS. NOTWITHSTANDING THE FOREGOING, IN NO EVENT SHALL THE COMPANY’S AGGREGATED LIABILITY UNDER THESE TERMS OF SERVICE EXCEED ONE HUNDRED ($USD 100).

  • INDEMNIFICATION

You agree to indemnify and hold harmless the Company and its directors, employees and agents from and against any claims, damages, obligations, losses, liabilities, costs or debt, and expenses (including but not limited to attorney’s fees) arising from your use of and access to the Extension, the Services and Content in breach of these Terms of Services or breach of third-party intellectual property right or privacy right.

 

  • TERMINATION

You may stop using the Extensions or Services at any time by uninstalling the Extension from your browser or disabling the Extension through your browser’s settings. We reserve the right, at any time, to: (i) discontinue, terminate, suspend or modify any aspect of the Extension or Services; or (ii) terminate these Terms and your use of the Extension or Services with or without cause, and shall not be liable to you or any third party for any of the foregoing. The Company does not assume any responsibility with respect to, or in connection with, the termination of the Extension or Services or these Terms. Upon any termination or deactivation of the Extension or Services, you agree to stop using the Extension or Services and remove the Extension from your device.

  • GOVERNING LAW; ARBITRATION

For any dispute you have with us, you agree to first contact us at: support@similarweb.com  and attempt to resolve the dispute with us informally. If we are not able to resolve the dispute with you informally, we each agree by these enforceable Terms of Services, unless otherwise required by a mandatory law, to resolve any claim or dispute arising out of or in connection with or relating to these Terms of Services exclusively by binding arbitration by the American Arbitration Association (“AAA”). You may bring claims only on your own behalf, and neither you nor the Company will participate in a class action or class-wide arbitration for any claims covered by these Terms. ALL CLAIMS MUST BE BROUGHT IN THE PARTIES’ INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS OR REPRESENTATIVE PROCEEDING AND THE ARBITRATOR MAY NOT CONSOLIDATE MORE THAN ONE PERSON’S CLAIMS. YOU AGREE THAT, BY ENTERING INTO THESE TERMS, YOU AND WE ARE EACH WAIVING THE RIGHT TO A TRIAL BY JURY OR TO PARTICIPATE IN A CLASS ACTION. This dispute resolution provision will be governed by the U.S. Federal Arbitration Act. This arbitration agreement will survive the termination of your relationship with the Company. In the event you do not agree with this provision, you must send us a written notice to: support@similarweb.com and include your name and residence address, and a clear statement that you want to opt out of this arbitration agreement. These Terms are governed by and construed in accordance with the laws of the State of New York, without giving effect to any principles of conflicts of law and will specifically not be governed by the United Nations Conventions on Contracts for the International Sale of Goods, if otherwise applicable. For any action at law or in equity relating to the arbitration provision of these Terms, you agree to resolve any dispute you have exclusively in a state or federal court located in New York, New York, Southern District, Manhattan and to submit to the personal jurisdiction of the courts located in New York County for the purpose of litigating all such disputes. Any cause of action you might have relating to the Extension or Services is limited in time to one (1) year from the date the incident arose, and will be permanently barred afterwards.

  • MISCELLANIOUS

These Terms of Services, and any rights granted hereunder, may not be transferred or assigned by you without the Company’s prior written confirmation. Nothing herein shall be construed to create any employment relationship, partnership, joint venture or agency relationship or to authorize any party to enter into any commitment or agreement binding on the other party.  If any provision of these Terms of Services is held to be unenforceable, these Terms of Services shall be construed without such provision. Company’s failure to enforce or exercise any right or provision of these Terms of Service will not constitute a waiver of such right or provision. Any waiver of any provision of these Terms of Service will be effective only if in writing, signed by an authorized representative of the Company. These Terms of Service and any references made herein represent the complete agreement concerning the Extension and the Services between you and the Company and supersede all prior agreements and representations related to the subject matter hereof.

  1. CONTACT US

Company Name: Similarweb Ltd.

Address: 33 Yitzhak Rabin Road, Givatayim, 5348303, Israel 

Email: support@similarweb.com