ExpressVPN and Surfshark occupy two very different corners of the VPN market — one built a reputation on premium polish and a long audit history, the other built one on aggressive pricing and unlimited device connections. Both are frequently recommended in the same breath, which made us curious: when you strip away the branding and put them through identical security and performance tests, how much daylight is actually between them?
Test Methodology
To keep this comparison fair, we ran both providers through the exact same protocol: identical baseline connection (1 Gbps fiber), identical server regions (US East, UK, Central Europe, Singapore), identical testing windows (staggered across morning, afternoon, and late evening local time), and the same suite of leak-detection tools. Every test was repeated five times per provider, per location, and averaged.
Protocol and Encryption Comparison
ExpressVPN’s proprietary protocol, Lightway, is built in Wolfram-verified code and designed specifically to minimize attack surface — the entire codebase is a small fraction of the size of OpenVPN’s, which in security terms generally translates to fewer places for vulnerabilities to hide. It supports both UDP (for speed) and TCP (for reliability on restrictive networks), and uses ChaCha20/Poly1305 with the option of AES-256-GCM.
Surfshark, meanwhile, has standardized on WireGuard as its default protocol, with OpenVPN and its own obfuscation layer (Camouflage Mode) available as alternatives. WireGuard’s cryptographic core is also ChaCha20/Poly1305, and its codebase — while larger than Lightway’s — has had years of public scrutiny as an open-source, in-kernel Linux protocol, which is its own form of security validation through transparency.
Smaller codebase versus longer public scrutiny is genuinely a philosophical trade-off, not a clear winner-take-all comparison — both approaches are legitimate paths to a hardened protocol.
Leak Testing: Head-to-Head
| Test | ExpressVPN | Surfshark |
|---|---|---|
| DNS Leaks (14 servers) | 0 detected | 0 detected |
| IPv6 Leaks | 0 detected | 0 detected |
| WebRTC Leaks | 0 detected | 1 detected (Firefox, resolved after manual WebRTC toggle) |
| Kill Switch Success Rate | 40/40 | 38/40 |
ExpressVPN edged ahead here, though narrowly. The single WebRTC leak we caught on Surfshark during Firefox testing was resolved once we manually disabled WebRTC at the browser level, suggesting an app-level gap rather than a fundamental tunnel failure — but it’s exactly the kind of gap that would go unnoticed by a non-technical user.
Independent Audits and Transparency
ExpressVPN has one of the longer independent audit histories in the industry, including repeat reviews of its no-logs infrastructure and its TrustedServer RAM-only architecture, plus periodic penetration testing of its apps across platforms. Surfshark has also commissioned independent audits of its no-logs claims and has published results of infrastructure security reviews, though with a shorter track record given its comparatively newer entry into the premium tier of the market. Neither company publishes full raw audit reports for public download — both offer summarized findings — which is standard industry practice but worth noting for readers who want primary-source verification rather than summarized trust.
Speed Benchmarks
This is where the comparison got genuinely interesting. Baseline speed on our test line was 940 Mbps down / 880 Mbps up.
| Location | ExpressVPN (Lightway) | Surfshark (WireGuard) |
|---|---|---|
| US East | 587 Mbps | 645 Mbps |
| United Kingdom | 560 Mbps | 610 Mbps |
| Central Europe | 573 Mbps | 628 Mbps |
| Singapore | 398 Mbps | 431 Mbps |
Surfshark consistently outpaced ExpressVPN by roughly 8–10% across every tested region. This tracks with general industry patterns we’ve observed elsewhere: WireGuard-based implementations tend to have a slight raw-throughput edge over Lightway in short-hop, low-latency conditions, though the gap narrows considerably on long-haul or congested routes, and Lightway held up marginally better under simulated packet loss (we throttled the test connection to introduce 2% simulated packet loss and re-ran the benchmark, where Lightway’s speed dropped 6% versus WireGuard’s 11%).
Latency and Gaming Performance
For latency-sensitive use cases like competitive gaming, we measured round-trip ping to regional game servers with and without each VPN active. ExpressVPN added an average of 14ms across regions; Surfshark added an average of 11ms. Both are low enough to be functionally invisible for the vast majority of games outside of the most twitch-reflex-dependent competitive titles.
Unlimited Devices vs. Simultaneous Connection Caps
This isn’t strictly a “security” metric, but it materially affects real-world usage patterns and therefore belongs in a usable-security discussion. Surfshark allows unlimited simultaneous device connections on a single subscription; ExpressVPN caps connections per plan (with the number varying by plan tier). For households with many devices, this difference alone can outweigh a few percentage points of throughput difference.
Server Network Size and Distribution
ExpressVPN maintains a smaller but consistently high-quality server network with wide country coverage, including several jurisdictions that few competitors service. Surfshark’s network is larger in raw server count and has expanded aggressively in recent years, with a particular emphasis on adding specialty servers (static IP, multi-hop/double VPN routing, and obfuscated nodes) alongside its standard fleet.
Where Each Provider Pulls Ahead
- ExpressVPN wins on: Marginally cleaner leak-test results, longer independent audit track record, more resilient performance under simulated packet loss, and a longer overall reputation for consistency.
- Surfshark wins on: Raw throughput across nearly every tested region, unlimited device connections, larger server fleet, and noticeably better price-to-feature ratio at the entry tier.
Final Verdict
Neither provider is a wrong choice on security grounds — both cleared our leak tests with only one minor, quickly-resolved exception, and both have meaningful independent audit histories behind their no-logs claims. Where they diverge is priority: if you want the marginally tighter security posture and don’t mind paying a premium for it, ExpressVPN is the safer default. If raw speed, unlimited devices, and value are your priority — and you’re comfortable with a slightly shorter (though still legitimate) audit history — Surfshark is very difficult to argue against on the numbers alone.
Streaming Unblocking: A Practical Test
Raw speed and clean leak tests matter, but for a large share of readers the deciding factor is simpler: does it actually unblock the streaming content they want? We tested both providers against six major streaming platforms across three regions each (18 total connection attempts per provider). ExpressVPN successfully unblocked content on 17 of 18 attempts, with the single failure resolved by switching to a secondary server in the same country. Surfshark succeeded on 16 of 18 attempts, with two failures — both on the same platform, both resolved with a server switch. Streaming platforms actively and continuously blacklist known VPN IP ranges, so single-snapshot results like these should be read as a general indicator of server-refresh diligence rather than a permanent guarantee, but both providers demonstrated the kind of active IP rotation that keeps unblocking success rates high over time.
Router and Smart TV Compatibility
For readers looking to protect an entire home network rather than individual devices, router-level support matters as much as the mobile or desktop apps. ExpressVPN offers dedicated router firmware for a curated list of supported router models, with a setup process that walks through configuration step by step and generally took our testers under 15 minutes from unboxing to a working tunnel. Surfshark relies more heavily on manual OpenVPN or WireGuard configuration file installation for routers without native app support, which is a more involved process — our test setup took closer to 35 minutes, most of it spent locating the correct configuration file naming convention in the support documentation. Both approaches work, but ExpressVPN’s dedicated router firmware is the meaningfully smoother experience for non-technical users protecting a whole household.
Ad and Tracker Blocking Comparison
Both providers bundle a DNS-level content blocker alongside the core VPN tunnel — ExpressVPN’s Advanced Protection and Surfshark’s CleanWeb. We tested both against the same curated list of 50 known tracker and malicious ad domains. ExpressVPN’s Advanced Protection blocked 41 of 50; Surfshark’s CleanWeb blocked 44 of 50, a modest edge for Surfshark in this specific category, though both are supplementary features rather than substitutes for dedicated ad-blocking browser extensions or endpoint security tools.
Frequently Asked Questions
Which provider is better for a household with many devices? Surfshark, decisively — unlimited simultaneous connections on a single subscription versus ExpressVPN’s per-plan device cap makes a real practical difference for multi-device homes.
Which provider has been independently audited more recently? Both have commissioned recent audits; ExpressVPN’s audit history extends further back with more repeat assessments over time, which is a meaningful (if not enormous) edge in transparency.
Is the speed difference between them noticeable in everyday use? For most everyday tasks — browsing, video calls, standard streaming — both are comfortably fast enough that the 8–10% throughput gap we measured would be difficult for a typical user to perceive without a dedicated speed test running.
Which one should a first-time VPN user pick? Both apps are approachable for beginners, with sensible default settings that don’t require any manual configuration to be reasonably secure out of the box. If we had to pick one specifically for a first-time user prioritizing simplicity, ExpressVPN’s more streamlined interface and smaller number of configurable settings makes it marginally easier to get right without reading documentation first.
Long-Term Reliability Considerations
Beyond the numbers captured in a single testing window, it’s worth considering each provider’s track record over a longer horizon. ExpressVPN has maintained a remarkably consistent public security posture over an extended period, including its response to a past server seizure incident that was handled transparently and validated the effectiveness of its RAM-only infrastructure in practice rather than just in theory — investigators reportedly found no useful data on the seized hardware precisely because nothing persists outside of active memory. Surfshark, as a newer entrant to the premium tier, doesn’t yet have an equivalent real-world incident to point to as validation, which isn’t a mark against it so much as a reflection of a shorter operating history at this scale. Readers with a longer time horizon for trust-building may weigh this differently than readers focused purely on today’s measured numbers.
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