Cookie Policy
Last Updated: 22 June 2025
Domains
Our websites operate across multiple domains. Our main website at nethermind.io is an informational site and does not directly provide an online product or service to users. Our subdomains (such as auditagent.nethermind.io) provide services directly to users.
This distinction is relevant to how certain cookies are classified. Some cookies that are strictly necessary for the operation of our service-providing subdomains require your consent when encountered on our main domain, because the strictly necessary exemption under applicable law applies only where a cookie is essential to provide a service that you have actively requested. On nethermind.io, where no such service is being provided, we rely on consent instead. In the table below, we reflect this distinction by showing the applicable classification separately for each domain.
Tracking Technologies
When you use our website, we may collect information about you through a variety of storage and access technologies, including:
Cookies – small text files placed on your device that store information about your browsing session or preferences.
Local storage and session storage – similar to cookies but stored directly in your browser and capable of holding larger amounts of data.
Pixel tags and web beacons – tiny invisible images embedded in web pages or emails that signal when content has been accessed.
Link decoration – the addition of unique identifiers to URLs so that we can track which links you click and connect activity across pages or sessions.
Navigational and clickstream tracking – recording the sequence of pages you visit, the links you follow, and other interactions with our website.
Device and browser fingerprinting – collecting technical characteristics of your device (such as browser type, screen resolution, and installed fonts).
SDKs and tracking scripts – third-party code embedded in our website that may collect data about your behaviour on our behalf.
For simplicity, in this Cookie Policy we refer to all of these technologies collectively as "cookies". Where a distinction is relevant, we will explain it.
Cookies We Use
We use the following cookies:
Strictly necessary cookies. These are cookies that are required for the operation of our websites and services. On our service-providing subdomains (such as auditagent.nethermind.io), these cookies are always enabled because the relevant service cannot function without them. They include cookies that enable core security features, protect against fraudulent or automated activity, and ensure our content is delivered correctly. You can switch these cookies off in your browser settings but you may then not be able to access all or parts of the relevant service.
Analytical or performance cookies. These allow us to recognise and count the number of visitors to our website and to understand how visitors navigate and interact with our content. This helps us to improve the way our website works and to ensure that users can find what they are looking for.
Functionality cookies. These cookies enable our website to provide enhanced functionality by connecting to third-party services, such as displaying embedded video content or code snippets. If these cookies are not permitted, some or all of these features may not function correctly.
Targeting or advertising cookies. These cookies record your visit to our website, the pages you have visited, and the links you have followed. We and our third-party partners use this information to make the advertising displayed to you more relevant to your interests, and to measure the effectiveness of our advertising campaigns.
You can find more information about the individual cookies we use and the purposes for which we use them in the table below:
| Cookie Title | Cookie Name | Purpose | First/Third Party | Duration | Main Domain Classification | Subdomain Classification | More Information |
|---|---|---|---|---|---|---|---|
| Strictly Necessary / Essential | |||||||
| Usercentrics | ucStringucDatauc:analytics:firedEvents:SETTINGSID (if applicable) | This is a consent management service. Usercentrics GmbH is used on websites and apps as a processor for the purpose of consent management. | Third Party | 1 year | Strictly Necessary | Strictly Necessary | Consent storage mechanism provided by Usercentrics GmbH. Storage is necessary to comply with your choice in respect of the cookies on our websites. |
| Framer | Framer-fetch-client-cacheevents.framer.com (cookieless - outgoing connection only) | Enables our website content to be served and rendered correctly. As part of operating its platform, Framer also automatically contacts its own servers (events.framer.com) on each page load to collect aggregated visit statistics. This occurs as part of Framer’s standard infrastructure and does not set a cookie or persistent identifier. Connection data including IP address is transmitted to Framer on each page load. | Third Party | Session / cached duration | N/A | Functional | Framer GDPR and Cookies |
| Cloudflare | __cf_bmcf_clearancecf_uvid | Provides security and performance optimisation, including protection against malicious traffic and DDoS attacks. | Third Party | 1 day / session | Essential | Strictly Necessary | Cloudflare Privacy PolicyCloudflare Cookie Policy |
| reCaptcha | rc::arc::c | Verifies that form submissions are made by a human and not an automated programme, protecting against spam and fraud. | Third Party | Session/ as needed | Essential | Strictly Necessary | Google Privacy Policy |
| JSDelivr | _cfuvidCDN | Loads the JavaScript libraries required for our website to render and function correctly. JSDelivr receives connection data (including IP address) as part of content delivery. _cfuvid is a HTTP Response Cookie. | Third Party | Session | Essential | N/A | JSDelivr Privacy Policy |
| Functional | |||||||
| YouTube Video | TESTCOOKIESENABLEDLAST_RESULT_ENTRY_KEYYSCVISITOR_INFO1_LIVE__Secure-YNID__Secure-ROLLOUT_TOKEN__Secure-YECYt-icons-last-purgeddatabasesLogsRequestsStoreSWHealthLog | Enables YouTube videos to be embedded and played on our website. | Third Party | Depending on the cookie/technology: Session1 day180 daysPersistent | Functional | N/A | Google Cookie Policy |
| Twitter/X Plugin | RichHistory | Enables embedded Twitter/X content on our website. | Third Party | Session | Functional | N/A | X for Websites - Info and PrivacyX Cookie Policy |
| GitHub | gist_user_sessiongist_oauth_csrf | Enables embedded GitHub gists (code snippets) on our website. | Third Party | Session/two weeks | Functional | N/A | GitHub Cookie Policy |
| Embedly (A Medium Corporation) | CDN | This is a service for integrating third-party content into the website. | Third Party | Session / as needed | Functional | N/A | Embedly Privacy Policy |
| Analytics | |||||||
| Matomo (InnoCraft) | _pk_id_pk_ses_pk_ref_pk_hsr_pk_cvar_pk_testcookiematomo_sessidmtm_consent_removedmtm_cookie_consent | Analyses how visitors use our website, including pages visited, time spent, and navigation paths. No data is shared with third parties. This instance of Matomo operates with heatmap and session recording enabled. This records mouse movements, clicks, and scrolling behaviour to help us understand how users interact with our services. This feature operates in cookieless mode - no additional persistent identifier is set. | First Party, Third Party | _pk_id: 13 months_pk_ses: 30 minutes_pk_ref: 6 months_pk_hsr: 30 minutes_pk_cvar: session_pk_testcookie: Temporary cookie that expires almost immediately after being set.matomo_sessid: 14 daysmtm_consent_removed: 1 yearMtm_cookie_consent: 1 year | Analytics | Analytics | InnoCraft Privacy PolicyMatomo Cookies |
| Advertising | |||||||
| Google Ads | NID__gadsPm_sessANID_gcl_auFPGCLAWFPGCLGB_gcl_gb_gac_gb_<wpid>_gcl_awYSC1P_JARAIDFPAU | Serves and measures the performance of our Google advertising campaigns, including image and search ads. | Third Party | Log data: anonymised after 9 monthsCookie data: anonymised after 18 months. | Advertising | Advertising | Google Privacy PolicyGoogle Privacy ControlsGoogle Ads Cookies Policy |
| DoubleClick Ad (owned by Google Ireland Limited) | DSIDpm_sesspm_sess_NNNaboutads_sessNNNFLCRULPAIDCONTENTAPC | This is an advertising service. With this service it is possible to provide relevant ads to users and get campaign reports. | Third Party | Depending on the cookie/technology (please refer to the Google Ads Cookies Policy for more detail): Session30 days183 days365 days | Advertising | Advertising | Google Privacy PolicyGoogle Privacy ControlsGoogle Ads Cookies Policy |
| Reddit Ads (pixel) | Pixel tag in ad_rdt_uuid | We use a Reddit tracking pixel embedded in our Reddit advertisements to understand where users are coming from when they arrive at our website via a Reddit campaign. When you see or click our ad on Reddit, Reddit’s pixel fires and Reddit receives data about that interaction. The pixel also sets a cookie on our website, which is a persistent visitor identifier for cross-session conversion attribution and audience building. | First PartyThird Party | Cookie: 90 days | N/A | Advertising | Reddit Cookie NoticeReddit Advertising Data Processing Agreement |
| Slise Ads (link decoration) | No cookies set - URL parameter only | We append unique identifiers to the URLs used in our Slise advertising campaigns. When you click one of our ads, the destination URL contains a parameter that tells us which ad placement or location you came from. This identifier exists only in the URL at the moment of click and is not stored in a cookie or local storage entry. This technology is set and read by us, not by Slise. | First Party | Not stored - exists only in the URL at point of click | N/A | Advertising | none |
Third Parties
Please note that the following third parties may also use cookies on our website, over which we have no or limited control. These third-party cookies are likely to be analytical, performance, or targeting cookies:
Cloudflare, Inc. - Strictly necessary / Essential
Framer B.V. - Strictly necessary, Analytics
GitHub, Inc. - Functional
Google Ireland Limited (Google Ads, DoubleClick, reCAPTCHA, YouTube) - Essential, Functional, Advertising
InnoCraft Ltd (Matomo) - Analytics
Reddit, Inc. - Advertising
Twitter International Company - Functional
Usercentrics GmbH - Strictly necessary / Essential
Volentio JSD Limited (JSDelivr) - Essential
To manage your preferences for these cookies, please use our:
Choices about cookies
You can choose which analytical, functionality, and targeting cookies we can set by using our cookie preference centre
Strictly necessary cookies — Always active on service-providing subdomains (and for storage of cookie consent response)
Essential cookies — Off by default on nethermind.io
Analytical or performance cookies — Off by default
Functionality cookies — Off by default
Targeting or advertising cookies — Off by default
You can also choose to reject all optional cookies in the cookie banner. You can update or withdraw your consent at any time by reopening the preference centre.
If you use your browser settings to block all cookies (including essential cookies) you may not be able to access all or parts of our website. Please note that certain strictly necessary cookies on our service-providing subdomains will be set regardless of your browser settings, as they are requireLd for those services to function.
Please refer to the cookie table above for the individual expiry period applicable to each cookie.
If you have any questions or concerns about our use of cookies, please send us an email at dataconsent@nethermind.io.