CDN

Akamai

Unclassified

Akamai is one of the oldest and largest content delivery networks in the world, with a vast edge network used for content acceleration, web application firewall, bot mitigation and real user monitoring. From a GDPR perspective Akamai acts as a processor handling IP addresses, request metadata, security signals and, when mPulse is enabled, performance telemetry on behalf of website operators.

Overview

What does Akamai do?

What Akamai does

Akamai operates the Intelligent Edge Platform, the largest commercial content delivery network and a global security platform. The CDN caches static and dynamic content on more than 4,300 edge points of presence in over 130 countries, accelerates pages, video and APIs and offloads traffic from origin servers. The security stack adds a Web Application Firewall (Kona Site Defender, App and API Protector), DDoS mitigation (Prolexic), bot management (Bot Manager and Bot Manager Premier), Edge Auth, Audience Insights and the Linode (Akamai Connected Cloud) compute platform.

What data Akamai processes

For every request Akamai processes the visitor IP, the user agent, the URL, the referer header, optional TLS fingerprint data and the HTTP body when WAF inspection is enabled. Bot Manager adds a browser challenge and writes the _abck and bm_sz cookies to track the challenge state. Edge Server may write ak_bmsc to maintain session affinity and akacd_* to remember the cache directive. None of these cookies are marketing trackers; they are strictly necessary for the security and routing decision. Logs are retained for 7 to 90 days depending on the product and feed Akamai Cloud Security Intelligence.

GDPR and ePrivacy implications

As a CDN, Akamai is a processor (GDPR art. 28) for its customers. The IP address and bot cookies fall under the strictly necessary exemption of ePrivacy art. 5(3) and the legitimate interest basis of GDPR art. 6(1)(f) when used purely for security and delivery. The CNIL explicitly lists security cookies as exempt. When Akamai Audience Insights, Predictive Personalization or any product that builds a behavioural identifier is activated, consent under GDPR art. 6(1)(a) is required because the use case goes beyond pure security.

Data residency and international transfers

EU customer traffic is normally served from European points of presence (Frankfurt, Amsterdam, Paris, London, Madrid, Stockholm) but Akamai SOC engineers in the US, India and Costa Rica access security logs centrally. Akamai is certified under the EU US Data Privacy Framework and uses the 2021 Standard Contractual Clauses as fallback. The Akamai Connected Cloud (Linode) offers explicit region pinning for compute workloads, with EU regions in Frankfurt, Amsterdam, London, Paris, Milan, Madrid and Stockholm.

Compliant deployment for European audiences

Sign the Akamai Data Processing Addendum, document the EU residency commitment, enable IP anonymisation where Akamai exposes it, list the strictly necessary cookies in the privacy notice without putting them behind the CMP, gate Audience Insights or Bot Manager Premier behind consent if you activate them, document the WAF processing in your record of processing under GDPR art. 30, and align with NIS 2 if Akamai is part of your critical service supply chain.

Compliance

Akamai and the GDPR

Legal basis
For the CDN delivery itself, legitimate interest of the publisher in delivering the website (GDPR art. 6(1)(f)) and contractual necessity (art. 6(1)(b)) when the service is requested by the user. The strictly necessary exemption of ePrivacy art. 5(3) applies to security cookies set by Bot Manager (akacd_*, ak_bmsc) and to the routing cookies set by Edge Server. For advanced products that profile visitors (Bot Manager Premier, Akamai Audience Insights), consent under GDPR art. 6(1)(a) is required.
Risk level
low
Applicable regulations
GDPR, ePrivacy Directive, CNIL exemption for security cookies, EU US Data Privacy Framework, NIS 2 Directive for critical service providers, German TTDSG

Impact assessment (DPIA)

A DPIA is recommended when Akamai is deployed with Bot Manager Premier, Account Protector, EdgeWorkers running custom personalization logic, mPulse Real User Monitoring or Identity Cloud, or when sensitive resources (financial services, public sector, healthcare) are protected. Routine static content delivery from Ion or Adaptive Media Delivery does not normally require a DPIA.

Sample text for your banner

This website is delivered and protected by Akamai, a US content delivery and security provider operated by Akamai Technologies Inc. Akamai processes your IP address, security signals and request metadata. When mPulse or fingerprinting features are active, additional performance data is collected. By accepting, you allow this processing on Akamai servers, including in the United States, under EU Standard Contractual Clauses.
Cookies and trackers

What Akamai sets and contacts

Tracking method
global_content_delivery_network_with_edge_compute_security_and_bot_management
Server location
Akamai operates over 4,300 edge points of presence across more than 130 countries on the Intelligent Edge Platform. EU traffic is normally served from European points of presence (Frankfurt, Amsterdam, Paris, London, Madrid, Milan, Stockholm). Akamai offers regional data residency contractual commitments for the Connected Cloud (formerly Linode) and for security products like Bot Manager and EdgeKV. Customer origin can be in any region of the customer choice.
Cookieless mode available
Yes
Data transferred outside the EU
Akamai is headquartered in Cambridge, Massachusetts. Although EU traffic typically stays on European points of presence, operational, security and incident response data may be accessed by Akamai staff in the US, Israel, India and Costa Rica. Akamai is certified under the EU US Data Privacy Framework and uses the 2021 Standard Contractual Clauses as fallback. The Edge DNS, Bot Manager and Image Manager logs may be aggregated centrally in Akamai US infrastructure.

Cookies set (11)

NameTypeDurationPurpose
_abckFirst party (Akamai Bot Manager)1 yearStores the bot detection state for the visitor, used by Bot Manager to remember whether the browser has passed the challenge
_abckStrictly necessary (security)12 monthsAkamai Bot Manager cookie. Stores a signed token used to evaluate whether the visitor is a legitimate user or an automated bot during subsequent requests.
bm_szFirst party (Akamai Bot Manager)4 hoursSession token used during the Bot Manager challenge to associate the proof of work with the right session
bm_szStrictly necessary (security)4 hoursAkamai Bot Manager session cookie. Stores short lived risk signals and ensures that repeated requests within a session can be correlated for bot scoring.
ak_bmscStrictly necessary (security)2 hoursBot Manager session token used to track whether a session has passed Bot Manager checks. Helps avoid challenging the same legitimate session multiple times.
ak_bmscFirst party (Akamai Edge Server)12 hoursEdge session affinity cookie that keeps the visitor on the same Akamai edge cluster for the session
akacd_*First party (Akamai Edge Server)Configurable (seconds to days)Cache directive marker used internally by the Akamai edge to coordinate cache invalidation and surrogate keys
ak_bmsc_ssnStrictly necessary (security)SessionBot Manager session continuation cookie used together with ak_bmsc to maintain session integrity during navigation.
bm_miFirst party (Akamai Bot Manager Premier)2 hoursMobile intelligence cookie used by Bot Manager Premier when device based bot detection is enabled
bm_lsoStrictly necessary (security)2 hoursBot Manager local storage observer cookie. Used to detect tampering with browser storage that could indicate automated behaviour.
RTAnalytics (mPulse, after consent)7 daysAkamai mPulse Real User Monitoring cookie. Stores a session identifier used to correlate page navigations, Core Web Vitals and error reports.

Third-party domains contacted (15)

  • akamai.net
  • akamai.net
  • akamaihd.net
  • akamaihd.net
  • akamaiedge.net
  • akamaiedge.net
  • akamaized.net
  • akamaized.net
  • edgekey.net
  • akamaitechnologies.com
  • edgesuite.net
  • edgekey.net
  • edgesuite.net
  • mpulse.net
  • go-mpulse.net
Questions

Frequently asked questions about Akamai

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What cookies does Akamai set?

Akamai cookies are primarily set by Bot Manager and Edge Server: _abck (1 year, bot detection state), bm_sz (4 hours, session token for the bot challenge), ak_bmsc (12 hours, edge session affinity) and akacd_* (configurable, cache directive). None of these are marketing cookies. They are written automatically when Bot Manager or Edge Server is active for the domain.

Which cookies does Akamai set on protected websites?

Akamai Bot Manager and App and API Protector set strictly necessary security cookies such as _abck, bm_sz, ak_bmsc, ak_bmsc_ssn and bm_lso that store bot risk signals and session integrity tokens. mPulse adds analytics cookies (RT, mp_rid) that store Real User Monitoring identifiers. Akamai itself does not set marketing or advertising cookies.

Is consent required for Akamai?

For the standard CDN and security stack (caching, WAF, DDoS, Bot Manager), no. These cookies are strictly necessary under ePrivacy art. 5(3) and the CNIL exempts them. Consent is required for Akamai products that profile visitors (Audience Insights, Predictive Personalization, Bot Manager Premier device intelligence beyond pure security).

Is consent required for Akamai under GDPR and ePrivacy?

No consent is required for content delivery and for strictly necessary security cookies (_abck, bm_sz, ak_bmsc), which fall under legitimate interest and the ePrivacy strictly necessary exemption. Consent is required for mPulse, Identity Cloud and any optional advanced fingerprinting feature that goes beyond what is strictly necessary to operate the service.

What is the legal basis for Akamai?

Article 6(1)(b) GDPR (performance of contract, the visitor requested the page) and art. 6(1)(f) (legitimate interest in security and delivery) for the CDN and security stack. Article 6(1)(a) consent for profiling products. Article 28 GDPR governs the processor relationship between the publisher and Akamai.

What is the legal basis for processing data through Akamai?

Content delivery, denial of service mitigation, web application firewall, basic bot management and account protection rely on legitimate interest under Article 6(1)(f) GDPR. mPulse Real User Monitoring, behavioural analytics, identity management and any optional personalization rely on consent under Article 6(1)(a) GDPR collected via a consent management platform.

Are data transferred outside the EU?

Yes. EU traffic is normally served from European points of presence, but Akamai SOC operations and security intelligence access logs centrally from the US, India and Costa Rica. Akamai is certified under the EU US Data Privacy Framework with 2021 SCCs as a fallback. A Transfer Impact Assessment under EDPB Recommendation 01/2020 is required.

How are data transfers to the United States protected?

Akamai signs the EU Standard Contractual Clauses under Article 46(2)(c) GDPR with customers through its Data Processing Addendum and confirms participation in the EU US Data Privacy Framework. Supplementary measures include TLS 1.3, encryption at rest, ISO 27001, ISO 27017, ISO 27018, PCI DSS Level 1, SOC 2 Type II and the option to keep Datastream logs in regional data stores.

Do I need a DPIA for Akamai?

Not for the standard CDN alone. Required for Akamai Bot Manager Premier with device fingerprinting, Akamai Audience Insights, Predictive Personalization or Edge Auth. The DPIA should describe data flows, the SOC access from non EU countries and the retention of WAF logs.

Is a DPIA required for Akamai?

A DPIA is recommended whenever Akamai is deployed with Bot Manager Premier, Account Protector, mPulse Real User Monitoring, Identity Cloud or EdgeWorkers running personalization logic, and whenever it protects high risk resources such as financial services, public sector portals or healthcare applications. Basic content delivery via Ion does not generally require a DPIA.

How do I implement Akamai compliantly?

Sign the Data Processing Addendum with the EU residency commitment, list strictly necessary cookies in the privacy notice without gating, gate Audience Insights and similar profiling products behind consent, configure WAF log retention to the shortest needed, train teams on the Akamai DSAR portal and document the chain in your record of processing.

How should I implement Akamai in a GDPR compliant way?

Sign the Akamai Data Processing Addendum, list Akamai in your record of processing activities, document security cookies in the cookie policy and explicitly mention the United States destination. Integrate mPulse and other optional features with a consent management platform so that they only collect data after consent, limit Datastream log retention and confirm that Bot Manager rules do not capture sensitive request bodies (passwords, payment data).

Are there EU based alternatives to Akamai?

EU based alternatives include OVHcloud Edge (France), Gcore (Luxembourg), Bunny.net (Slovenia) and StackPath (with EU data centres) for CDN needs, plus Cloudflare for the EU Data Residency add on. For Bot Management specifically, Imperva and Radware offer European deployments. The right choice depends on edge coverage, security features and contractual data residency commitments.

What are the alternatives to Akamai?

Cloudflare (US with EU regional services), Fastly (US with Compute@Edge EU), Bunny.net (Slovenia, EU first), Gcore (Luxembourg), Stackpath, Edgio (formerly Limelight), CloudFront (US with EU regions) and Microsoft Azure Front Door. None are fully EU only at the corporate level; Bunny.net and Gcore are the most EU centric.

How do I update my cookie policy after adding Akamai?

List the strictly necessary cookies (_abck, bm_sz, ak_bmsc, akacd_*) in the security section of the privacy notice, declare Akamai as a sub processor with EU residency, mention the EU US Data Privacy Framework certification, link to the Akamai Trust Center and explain why these cookies cannot be refused without breaking the service.

How do I update the cookie policy when using Akamai?

List Akamai Technologies Inc. as the processor of the CDN and security services, describe the strictly necessary security cookies (_abck, bm_sz, ak_bmsc, ak_bmsc_ssn, bm_lso), explain that mPulse cookies (RT, mp_rid) only load after consent, mention the United States destination under SCCs and the EU US Data Privacy Framework, and link to the Akamai Privacy Statement.

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