Proton VPN

Legal company name

company.legal_name

Trademark holder, if different

company.brand_owner

Year founded

company.founded

Headquarters (country)

company.hq_country

Other relevant jurisdictions

company.jurisdictions

Intelligence alliance of the home country

company.eyes_alliance

Parent group / holding

company.parent

Beneficial owners publicly known

company.ubo_public

Ownership structure

company.ownership_type

Leadership team publicly named

company.team_public

Verifiable postal address for legal service

company.address_verifiable

Sister VPN brands in the group

company.sister_vpn_brands

Group owns VPN review and comparison sites

company.owns_review_sites

Runs an affiliate programme

company.affiliate_program

Typical commission rate

company.affiliate_commission

YouTube and influencer sponsoring

company.influencer_sponsoring

Documented misleading advertising claims

company.misleading_claims

Acquisition history / former name

company.acquisition_history

Operating status

company.status

Discontinuation date

company.discontinued_date

User base migrated to

company.user_base_migrated_to

Core statement of the logging policy

logging.policy_summary

Activity and traffic logs

logging.activity_logs

Connection logs

logging.connection_logs

Storage of the real IP address

logging.source_ip_stored

Storage of the assigned VPN IP

logging.assigned_ip_stored

Precision of stored timestamps

logging.timestamps_stored

Recording of transferred data volume

logging.bandwidth_logged

Enforcement of the device limit

logging.concurrent_conn_enforcement

Minimum account data required

logging.account_data_minimum

Telemetry in the apps

logging.app_telemetry

Trackers and SDKs in the Android app

logging.thirdparty_sdks_android

Trackers in the iOS app

logging.thirdparty_sdks_ios

Trackers and cookies on the website

logging.website_trackers

Data shared with third parties

logging.data_shared_with

Retention periods stated in the policy

logging.retention_period

EU representative named under GDPR

logging.gdpr_representative

Independent no-logs audit

trust.nolog_audit

No-logs audit details

trust.nolog_audit_details

Audit report published

trust.audit_report_public

App and client audits

trust.app_audits

Infrastructure and server audits

trust.infra_audit

Audit frequency

trust.audit_cadence

Tested in court or by authorities

trust.court_tested

Transparency report

trust.transparency_report

Warrant canary

trust.warrant_canary

Security incidents and data leaks

trust.breach_history

Bug bounty programme

trust.bug_bounty

Handling of reported vulnerabilities

trust.cve_handling

Open source clients

trust.opensource_clients

Open source server side

trust.opensource_server

Reproducible builds

trust.reproducible_builds

Available on F-Droid

trust.fdroid_available

Listings by independent bodies

trust.independent_recommendations

WireGuard

crypto.wireguard

OpenVPN over UDP

crypto.openvpn_udp

OpenVPN over TCP

crypto.openvpn_tcp

IKEv2/IPsec

crypto.ikev2

Proprietary protocol

crypto.proprietary_protocol

Legacy protocols still offered

crypto.legacy_protocols

Default data cipher

crypto.data_cipher_default

Weakest accepted cipher

crypto.data_cipher_weakest

Key exchange and authentication

crypto.handshake

Perfect forward secrecy

crypto.pfs

Post-quantum key exchange

crypto.post_quantum

Own DNS resolvers

crypto.own_dns

DNS leak protection

crypto.dns_leak_protection

IPv6 handling

crypto.ipv6_handling

WebRTC protection or guidance

crypto.webrtc_guidance

Obfuscation methods

crypto.obfuscation

Usability behind the Great Firewall

crypto.works_in_china

Kill switch

features.killswitch

Permanent lockdown

features.killswitch_permanent

Split tunneling

features.split_tunneling

Multihop

features.multihop

Tor integration (Onion over VPN)

features.tor_integration

Port forwarding

features.port_forwarding

Surcharge for a dedicated IP

features.dedicated_ip

SOCKS5 proxy

features.socks5

HTTP proxy

features.http_proxy

Smart DNS

features.smart_dns

Ad and tracker filtering in DNS

features.adblock_dns

Malware and phishing filter

features.malware_filter

Custom DNS servers allowed

features.custom_dns_allowed

Local network access toggle

features.lan_access_toggle

Auto connect rules

features.autoconnect_rules

Private device network (mesh)

features.mesh_private_net

GPS location override (Android)

features.gps_spoofing

Traffic analysis defence

features.traffic_analysis_defense

IPv6 inside the tunnel

features.ipv6_tunnel

Obfuscation without configuration

features.stealth_default

Number of servers

network.server_count

Number of countries

network.country_count

Number of cities

network.city_count

Virtual locations

network.virtual_locations

RAM-only servers (diskless)

network.ram_only

Hardware ownership

network.ownership

Own AS (autonomous system)

network.own_asn

10 Gbps ports

network.10g_servers

P2P and file sharing

network.p2p_servers

Public server list

network.server_list_public

Public status page

network.status_page

Known upstream hosting providers

network.hosting_providers

Windows app

apps.windows

macOS app

apps.macos

Linux app with GUI

apps.linux_gui

Linux command line

apps.linux_cli

Android app

apps.android

iOS app

apps.ios

Android TV app

apps.androidtv

Apple TV app

apps.appletv

Fire TV app

apps.firetv

Browser extension

apps.browser_ext

Type of browser extension

apps.browser_ext_type

Router support

apps.router_support

Native build for Apple Silicon

apps.macos_arm_native

Command line documented

apps.cli_documented

Simultaneous devices

apps.simultaneous_devices

Usable without an account

apps.no_account_needed

Data required at signup

pricing.signup_email_required

Account model

pricing.account_model

Cash by mail

pricing.cash_by_mail

Monero

pricing.monero

Bitcoin

pricing.bitcoin

Lightning

pricing.lightning

Retail gift cards

pricing.retail_giftcards

PayPal

pricing.paypal

Credit and debit card

pricing.credit_card

SEPA payment

pricing.sepa

Monthly price

pricing.monthly_price

Effective price on the longest term

pricing.effective_price_longest

Price change at renewal

pricing.renewal_price_hike

Flat pricing without permanent discounts

pricing.flat_pricing

Free tier and its limits

pricing.free_tier

Money-back window

pricing.moneyback_days

Cancellation path

pricing.cancellation_ease

P2P policy in the terms of service

usage.p2p_policy

Streaming unblocking officially advertised

usage.streaming_officially

Netflix regions reported

usage.netflix_regions_reported

Other streaming services

usage.other_streaming_services

Bandwidth cap

usage.bandwidth_cap

Data cap

usage.data_cap

Speed measurement references

usage.speed_references

Latency and gaming suitability

usage.latency_gaming

SMTP and port 25 handling

usage.smtp_policy

Official support in restrictive countries

usage.restrictive_countries_support

24/7 live chat

support.livechat_247

Email or ticket support

support.email

Telephone support

support.phone

German-language support

support.german_language

Documentation assessment

support.docs_quality

Self-hosted chat widget

support.selfhosted_chat

Self-service account deletion

support.account_deletion_easy

SSL Labs grade of the website

site.ssl_grade

Tracker load of the website

site.cookie_privacy_impact

URL of the warrant canary

site.canary_page

Length and readability of the legal documents

site.tos_readability

Marketing claims contradicting the provider's own terms

site.claims_vs_reality