AdGuard
AdGuard is a commercial ad-blocking and privacy protection suite offering browser extensions, desktop and mobile apps, DNS-level filtering, and a VPN service. It blocks ads, trackers, and malicious content across browsers and applications using a freemium model with lifetime and subscription licensing options.
Score generated by AI agents based on publicly cited evidence and reviewed by the project maintainer. Not independently validated.
Score History
Timeline events are AI-curated from public reporting. Score trajectory is derived from documented events.
AdGuard was founded in Moscow in 2009 by three co-founders who initially built a web analytics tool before pivoting to ad blocking. The company operated as a side project funded through web design services, with the team shrinking to three members working from a small apartment. With only a Windows desktop app and no monetization infrastructure beyond direct sales, the product had minimal enshittification vectors.
AdGuard relocated its headquarters from Moscow to Limassol, Cyprus in 2014, deliberately choosing EU jurisdiction for data protection. The company ceased web design services and committed fully to ad blocking, launching browser extensions (Chrome, Opera, Firefox, Safari), an Android app (immediately removed from Google Play), and a Mac app. Desktop apps remained proprietary while browser extensions were open-sourced, creating a transparency split that persists today.
AdGuard expanded from desktop/mobile ad blocking into network-level privacy infrastructure, launching AdGuard DNS (public beta 2016, official release December 2018) and the free open-source AdGuard Home self-hosted server. A credential-stuffing attack in September 2018 prompted a transparent full password reset. Apple's enforcement of VPN API restrictions froze iOS updates for a year. The product portfolio grew in complexity while the company maintained open filter lists and community transparency.
Russia's 2022 invasion of Ukraine forced AdGuard into geopolitical turbulence. SetApp removed AdGuard over its Russian origins; many Moscow-based employees relocated to Cyprus. The company responded by offering free licenses to affected users and denying server connections to Russia. AdGuard DNS 2.0 launched with paid tiers and was open-sourced. The world's first Manifest V3 ad blocker prototype was published, positioning AdGuard ahead of Chrome's extension API transition. Product expansion added complexity with VPN and DNS monetization streams.
AdGuard expanded into a comprehensive privacy suite spanning ad blocking, DNS, VPN, email privacy, and crypto wallet across all major platforms including Linux. The company open-sourced its VPN protocol (TrustTunnel) under Apache 2.0 and adapted to Chrome's Manifest V3 restrictions. With ~150 million users, $5.4 million revenue, and 49 employees, the bootstrapped company's product proliferation slightly increased monetization complexity while core ad-blocking quality remained strong.
Alternatives
Free, open-source browser extension with zero monetization and no corporate backing. The gold standard for browser-based ad blocking. Easy switch for browser use, though it lacks AdGuard's system-wide app blocking and DNS features. Full version requires Firefox or Brave after Chrome's Manifest V3 changes.
Free, self-hosted network-level DNS ad blocker that protects all devices on your network. Requires a Raspberry Pi or Linux server and some technical setup (30-60 minutes). A good complement or alternative to AdGuard's DNS service if you prefer self-hosting.
Cloud-based DNS filtering service that blocks ads and trackers at the network level, similar to AdGuard DNS but without requiring self-hosting. Free tier includes 300,000 queries/month; Pro is $1.99/month. Easy setup — just change your DNS settings.
Dimensional Breakdown
Summaries below were written by AI agents based on the cited evidence. They are editorial interpretations, not independent research findings.
Dimension History
Timeline (50 events)
AdGuard Software Limited incorporated in Moscow
AdGuard Software Limited was incorporated on June 1, 2009, in Moscow, Russia by co-founders Andrey Meshkov, Dmitry Zaytsev, and Igor Lukyanov. The team's first product was NetChart, a free web analytics tool, before pivoting to ad blocking.
AdGuard for Windows launched as paid software
AdGuard launched as a paid Windows ad-blocking application, the company's first commercial product. The team had shrunk to three core members working from a small apartment near Moscow, funding development through a parallel web design agency.
AdGuard v5.7 adds HTTPS encrypted traffic filtering
AdGuard v5.7 for Windows introduced the ability to filter ads in encrypted HTTPS traffic, a significant technical advancement that allowed blocking ads on SSL-secured websites. This required installing a local root certificate to inspect encrypted connections.
Chrome browser extension released as first open-source product
AdGuard released its Chrome browser extension, making it the company's first open-source product. This reflected AdGuard's data privacy-oriented approach and allowed external auditing of the extension's code.
AdGuard pivots fully to ad blocking, ceases web design work
In January 2014, AdGuard ceased its web design agency services and committed entirely to ad-blocking product development. This marked the transition from a side project funded by services revenue to a dedicated product company.
Headquarters relocated from Moscow to Limassol, Cyprus
AdGuard moved its legal headquarters from Moscow, Russia to Limassol, Cyprus, a deliberate decision to operate under EU jurisdiction and data protection laws. Development work continued from Moscow while the corporate entity gained EU legal standing.
Google removes AdGuard for Android from Play Store
Just two weeks after its official launch, Google removed AdGuard for Android from the Play Store on November 25, 2014, citing violation of section 4.4 of the developer terms which forbade apps from interfering with other apps' services. This was part of Google's broader purge of system-wide ad blockers that began in 2013.
AdGuard switches to Paddle as Merchant of Record
AdGuard switched its payment processing from Digital River to Paddle, enabling support for Alipay to serve its growing Chinese user base. The move simplified tax compliance and improved payment conversion rates across global markets.
AdGuard for Mac released as system-wide blocker
AdGuard released its macOS system-wide ad blocker, expanding beyond Windows to cover Apple's desktop platform. This marked the company's multi-platform expansion strategy that would eventually span Windows, Mac, Android, iOS, and Linux.
AdGuard adopts GitHub for public bug tracking and transparency
AdGuard moved its bug tracking and development workflow to GitHub, enabling public visibility into reported issues, planned features, and development progress. This increased transparency around the proprietary desktop and mobile applications.
AdGuard for iOS launched for Safari content blocking
AdGuard launched its iOS app leveraging Apple's Safari content blocking API introduced in iOS 9. The app provided ad blocking within Safari, though Apple's restrictions prevented system-wide blocking at this stage.
AdGuard Annoyances filter released for cookie popups and widgets
AdGuard released the Annoyances filter, designed to block cookie consent notices, pop-ups, third-party chat widgets, and other non-advertising annoyances on web pages. This expanded the product's scope beyond ads to general web clutter.
AdGuard DNS beta service launched for public testing
AdGuard announced the beta of its DNS-based ad-blocking service on July 26, 2016, offering a way to block ads without installing software by simply changing DNS settings. This was AdGuard's first move beyond local software into network-level privacy infrastructure.
AdGuard Content Blocker released on Google Play
AdGuard launched Content Blocker on Google Play, a limited ad-blocking app that only works within Samsung Internet and Yandex browsers. This was the only AdGuard app permitted on Google Play since the full ad blocker's removal in 2014, working within Google's policy constraints.
AdGuard Pro for iOS launched with system-wide blocking
AdGuard Pro for iOS was released with the ability to block ads system-wide across all apps, not just Safari. This used iOS VPN APIs to filter network traffic, a capability that Apple would later restrict.
AdGuard headquarters relocated to Nicosia, Cyprus
AdGuard moved its headquarters from Limassol to Nicosia, Cyprus, consolidating its EU legal presence. The company's website was overhauled and translated into multiple languages as part of a global expansion push.
AdGuard publishes cryptojacking research finding 220+ mining sites
AdGuard research identified over 220 cryptojacking websites among the top 100,000 sites by traffic, with nearly 95% running the CoinHive script. The company estimated hackers earned $1.7 million monthly from over 10 million affected users, establishing AdGuard as a privacy research voice.
CoreLibs cross-platform filtering engine deployed
AdGuard deployed CoreLibs, a unified cross-platform filtering engine that standardized ad blocking across all AdGuard products. The new engine made AdGuard for Android v2.12 three times faster, significantly improving performance across platforms.
AdGuard research exposes Android apps silently stealing user emails
AdGuard researchers found that popular Android apps, including GO SMS Pro, Z Camera, and S Photo Editor (each with 100M+ installs), were silently extracting user email addresses and transferring them to third parties without consent. GO SMS Pro sent emails in plaintext HTTP, exposing them to ISPs.
AdGuard discovers 20 million users tricked by fake ad blocker extensions
AdGuard research revealed that five fake Chrome ad-blocker extensions had accumulated over 20 million users through cloning legitimate ad blockers and embedding malicious code. The extensions performed ad fraud via cookie stuffing, earning their creators millions monthly from affiliate commissions on sites like Booking.com.
Apple restricts system-wide ad blocking on iOS via VPN API
Apple began enforcing its policy against apps using VPN profiles to block ads in third-party apps, effectively freezing AdGuard Pro for iOS. From summer 2018 to summer 2019, AdGuard for iOS received no updates as Apple refused to approve new versions that used VPN-based filtering.
AdGuard resets all passwords after credential-stuffing attack
AdGuard detected continuous login attempts from suspicious IP addresses using credential-stuffing techniques. CTO Andrey Meshkov confirmed no servers were compromised, but the company proactively reset all user passwords and directed users to HaveIBeenPwned. AdGuard also announced plans for two-factor authentication.
AdGuard Home open-source self-hosted DNS blocker released
AdGuard released AdGuard Home, a free, open-source, self-hosted network-wide DNS ad-blocking server under GPL-3.0 license. It offered an alternative to Pi-hole with a web-based management interface, supporting DNS-over-HTTPS, DNS-over-TLS, and DNSCrypt protocols.
First Ad-Blocking Developer Summit held in Amsterdam
The inaugural Ad-Blocking Developer Summit (later Ad-Filtering Dev Summit) gathered ad-blocking developers worldwide to discuss the industry's future. AdGuard co-sponsored the event alongside eyeo, helping establish a collaborative community among competing ad-blocking projects.
AdGuard DNS officially launched as public privacy-oriented service
After two years of beta testing since 2016, AdGuard officially launched its DNS service with support for DNS-over-TLS and DNS-over-HTTPS encryption. The free public DNS resolver provided ad and tracker blocking at the network level without requiring any software installation.
Apple updates App Store guidelines restoring VPN-based filtering
Apple published new App Store Review Guidelines allowing parental control, content blocking, and security apps from approved providers to use the NEVPNManager API. This ended the year-long freeze on AdGuard Pro for iOS updates, allowing system-wide ad blocking to return.
AdGuard simplifies licensing to Personal and Family plans
AdGuard overhauled its licensing system, replacing a confusing array of options with two straightforward tiers: Personal (3 devices) and Family (9 devices), each available as annual subscription or lifetime purchase. The simplification addressed customer confusion at the purchase page.
AdGuard VPN announced and Chrome extension beta launched
AdGuard announced AdGuard VPN, its entry into the VPN market, starting with a Chrome browser extension beta. All features were free during the initial beta period to test server load, marking AdGuard's expansion from ad blocking into broader privacy tools.
Fraudulent browser extensions impersonate AdGuard VPN
Five malicious browser extensions impersonating legitimate services including AdGuard VPN were discovered in the Microsoft Edge Store and Chrome Web Store. The fake extensions injected ads into Google and Bing search results. Microsoft and Google removed the fraudulent extensions after discovery.
AdGuard employees begin relocating from Moscow post-invasion
Following Russia's invasion of Ukraine in February 2022, many AdGuard employees who had historically worked from Moscow began relocating to Cyprus and other countries. The company acknowledged the war changed the lives of many team members, including Ukrainian staff in filters, support, QA, and development.
SetApp removes AdGuard over Russian origins after Ukraine invasion
Following Russia's 2022 invasion of Ukraine, SetApp (a Ukrainian-owned subscription service) removed AdGuard, alleging connections to Russian servers. AdGuard denied the claim, stating all servers are in Frankfurt, Germany, and offered affected users free 1-year personal licenses covering 3 devices.
Private AdGuard DNS open beta launched with customizable filtering
AdGuard launched the open beta of private AdGuard DNS, allowing users to configure personalized blocklists and manage DNS filtering per device through a dashboard. After six beta iterations, this would become AdGuard DNS 2.0.
AdGuard DNS 2.0 launched with personal dashboard and paid tiers
AdGuard relaunched its DNS service as DNS 2.0, transforming it from a simple install-and-forget public resolver into a full-featured product with personal dashboards, customizable blocklists, and paid tiers. The infrastructure was released as open source under AGPL license.
AdGuard DNS 2.0 infrastructure open-sourced under AGPL
AdGuard open-sourced its DNS 2.0 server infrastructure under the AGPL license, allowing external auditing and community contributions to the DNS filtering codebase. This followed the pattern of open-sourcing browser extensions and AdGuard Home.
AdGuard publishes world's first Manifest V3 ad blocker prototype
AdGuard released the first ad-blocking browser extension built on Google's Manifest V3 framework, ahead of all competitors. Despite MV3's limitations on blocking rules (30,000 static rules per extension vs. 300,000+ typically needed), AdGuard's prototype demonstrated viable ad blocking under the new constraints.
AdGuard v7.13 for Windows adds Encrypted ClientHello support
AdGuard for Windows v7.13 introduced experimental support for Encrypted ClientHello (ECH), a technology that encrypts the server name in TLS connections. This enabled ECH system-wide across all apps and browsers, ahead of native browser implementations.
AdGuard v4.0 for Android: complete rewrite and redesign
AdGuard v4.0 for Android was released as a ground-up rewrite with every line of code rewritten for improved speed and reliability. The update introduced a redesigned interface, a separate Protection section with Firewall and Browsing Security, and improved AdGuard VPN integrated mode.
AdGuard for Android TV launched for smart TV ad blocking
AdGuard released a dedicated Android TV app, making it the first system-wide ad blocker for smart TVs. The app blocks ads, trackers, and phishing on television and enables encrypted DNS on TV devices for the first time.
AdGuard Temp Mail beta launched for disposable email addresses
AdGuard launched Temp Mail in beta, a free temporary email address service designed to protect users' real email from spam and tracking. This marked another expansion of AdGuard's product portfolio beyond ad blocking into broader privacy tools.
Apple removes AdGuard VPN from Russian App Store at Roskomnadzor demand
Apple removed AdGuard VPN along with 20+ other VPN apps from the Russian App Store at the demand of Russian media regulator Roskomnadzor. By September 2024, close to 60 VPN apps had been silently removed, bringing the total to 98 unavailable VPN apps in Russia. AdGuard launched a Change.org campaign urging Apple to allow sideloading in censored countries.
Ad-Filtering Dev Summit 2024 co-hosted with eyeo in Berlin
AdGuard co-hosted the 7th Ad-Filtering Dev Summit with eyeo in Berlin, bringing together developers from AdGuard, Brave, eyeo, Google, Meta, Mozilla, Opera, and other organizations. The two-day event focused on ad filtering beyond traditional media, blockchain advertising, and Manifest V3 impacts.
AdGuard MV3 browser extension released for Chrome
AdGuard released the stable version of its Manifest V3-compatible browser extension for Chrome, one of the first ad blockers fully adapted to Google's new extension framework. The release featured a redesigned interface and used dynamic rules via AdGuard Quick Fixes for real-time filter adjustments.
AdGuard Mail launched combining aliases and temporary email
AdGuard launched AdGuard Mail as the evolution of Temp Mail, combining email aliases and temporary addresses into a single privacy-focused email service. Users can create aliases forwarded to their real inbox without revealing their actual email address.
ASUS pre-installs AdGuard DNS in all Wi-Fi 7 routers
ASUS announced integration of AdGuard DNS into all its Wi-Fi 7-compatible router models, including seven initial models such as the ROG Rapture GT-BE98 Pro. Users can register for AdGuard DNS directly through the router interface, providing network-wide ad blocking without per-device configuration.
AdGuard VPN adds post-quantum cryptography support
All AdGuard VPN apps received post-quantum cryptography support using the X25519MLKEM768 hybrid encryption method, the same approach used in Chrome. The feature protects against future quantum computing threats to current encryption, with minimal performance impact (0.1 second additional connection time).
AdGuard Web Performance Report shows 39% bandwidth savings
AdGuard published its 2025 Web Performance Report, testing 119 US news sites and finding that browser-based ad blocking cuts page load times by 45% and reduces data usage by 39%. The report estimated regular users save approximately 80 GB of bandwidth and 52 hours of loading time annually.
AdGuard v1.0 for Linux released as stable system-wide ad blocker
AdGuard released the stable v1.0 of its Linux ad blocker, making it the world's first system-wide ad-blocking application for Linux. The command-line interface supports app-level filtering, custom rules, and DNS protection, completing AdGuard's coverage across all major desktop and mobile platforms.
Samsung and Xiaomi remove AdGuard VPN from Russian stores
Samsung removed AdGuard VPN from its Galaxy App Store in Russia at Roskomnadzor's demand, followed by Xiaomi's removal from its Russian store the same day. This extended the VPN censorship beyond Apple's 2024 removals to Android device manufacturers, though AdGuard VPN remained available on the Google Play Store in Russia.
AdGuard VPN protocol open-sourced as TrustTunnel under Apache license
AdGuard open-sourced its proprietary VPN protocol as TrustTunnel under the Apache 2.0 license, publishing client, server, and Flutter client repositories on GitHub. Written in Rust, TrustTunnel disguises VPN traffic as regular HTTPS using HTTP/2 or HTTP/3 transport, making it resistant to blocking.
Ad-Filtering Dev Summit 2025 hosted in Limassol, Cyprus
AdGuard hosted the Ad-Filtering Dev Summit 2025 in Limassol, Cyprus, together with Ghostery and eyeo. AI was a major focus, with discussions on using large language models for both advertising generation and ad-blocking improvement across the industry.
Evidence (40 citations)
D1: User Value Erosion
D2: Business Customer Exploitation
D3: Shareholder Extraction
D4: Lock-in & Switching Costs
D5: Twiddling & Algorithmic Opacity
D6: Dark Patterns
D7: Advertising & Monetization Pressure
D8: Competitive Conduct
D9: Labor & Governance
D10: Regulatory & Legal Posture
Scoring Log (4 entries)
Stripped for Phase 2 re-enrichment