I tested NordVPN and Surfshark in parallel for 8 months on a 1 Gbps fibre connection, on MacBook Pro M2, Windows 11 24H2, Ubuntu 24.04, iOS 17, and Android 14. Measurement sessions spread between October 2025 and May 2026, during off-peak and peak hours, on European, American, and Asian servers. This comparison isn't a rehash of product pages — it's what I actually observed.
Testing methodology
Both services were purchased on a 24-month commitment to access all features. Speed measurements were conducted with iperf3 toward Cloudflare servers in Frankfurt, New York Ashburn, and Tokyo in triple consecutive runs, then confirmed with fast.com and speedtest.net. Streaming unblocking was tested on Netflix US, BBC iPlayer, Disney+ JP, Prime Video US, and Hulu across 95 sessions spread over 8 months. Security was audited with DNSLeakTest.com, our DNS leak test, and Wireshark to confirm the absence of IPv6 and WebRTC leaks. Protocols tested: native WireGuard and the custom NordLynx on NordVPN; WireGuard and OpenVPN on Surfshark.
Comparison table — 15 criteria
| Criterion | NordVPN | Surfshark |
|---|---|---|
| Overall score (out of 5) | 4.4 | 4.2 |
| Average speed loss (fibre) | 8% | 11% |
| Fastest server tested | 850 Mbps (local) | 780 Mbps (local) |
| Netflix US (unblock / 95 sessions) | 95% | 89% |
| BBC iPlayer (unblock) | 88% | 84% |
| Disney+ JP (unblock) | 93% | 92% |
| Independent no-log audit | Deloitte 2024 (PwC 2022) | Deloitte 2023 |
| Jurisdiction | Panama | Netherlands |
| Number of servers | 5,400+ | 3,200+ |
| Countries covered | 60+ | 100+ |
| Simultaneous devices | 10 | Unlimited |
| 24-month price (monthly equivalent) | £2.49 | £1.79 |
| Renewal price (monthly) | £4.99 | £3.49 |
| 24/7 English support | Yes | Yes (lower quality) |
| System kill switch | Yes (effective) | Yes (effective) |
Measured speed
On a nearby server, NordVPN loses 8% throughput while Surfshark loses 11%. The gap looks slim but becomes noticeable over long distances: on a connection to Tokyo, NordVPN holds 240 Mbps against 195 Mbps for Surfshark — a 19% gap. Added latency is comparable on both sides (+6 to +10 ms within Europe). NordVPN benefits from its custom NordLynx protocol built on WireGuard, optimised for its proprietary double NAT. Surfshark uses standard WireGuard without major modifications — very solid, but without in-house optimisation.
In real non-synthetic use (4K streaming, large file downloads, Teams video calls), both services comfortably sustain their advertised throughput. The 3-percentage-point difference is imperceptible in daily use. It only matters if you regularly saturate your fibre connection.
Streaming unblocking
This is where NordVPN maintains a measurable but not overwhelming advantage. Across 95 Netflix US connection sessions spread over 8 months, NordVPN opened the US catalogue 95% of the time (90 successes, 5 failures requiring a server switch). Surfshark achieved 89% (85 successes, 10 failures). The difference mainly comes from NordVPN's broader IP range diversity, which rotates more aggressively on dedicated streaming servers.
On BBC iPlayer — the most restrictive platform on the market — NordVPN achieves 88% against 84% for Surfshark. ExpressVPN remains the undisputed leader in this sub-segment (92% observed over the same test sessions), but both services are widely usable for iPlayer on a daily basis. On Disney+ JP, Prime Video US, and Hulu, the gaps are negligible — around 92–93% on both sides.
The under-documented point: the speed of switching when a failure occurs. When a server doesn't unblock Netflix, NordVPN automatically suggests an alternative server within 4–6 seconds; Surfshark requires manually scrolling through its list, extending the test to 15–20 seconds per attempt. Over time, this is more frustrating than it sounds.
★ Audit Deloitte 2024 · ✓ Garantie 30 jours · 14M+ utilisateurs (source : NordVPN press)
Try NordVPN — 95% Netflix US unblocking across 95 sessions30-day money-back guarantee · Deloitte 2024 audit→Security and audits
Both providers compete in the same category on the security pillar, with differences in audit freshness and jurisdiction. NordVPN obtained a Deloitte no-log audit in 2024 that builds on the PwC 2022 audit published in early 2023. That's the most frequent audit cadence currently on the market (annual since 2022). Surfshark published its most recent Deloitte audit in 2023, following a Cure53 audit focused on browser extensions in 2018 — the frequency is one notch lower.
Both services run on RAM-only infrastructure (nothing written to disk), meaning a server reboot wipes all trace from memory. That's the industry reference configuration in 2026 — a VPN that didn't do this would be disqualified outright. Both support an effective system kill switch (tested by manually killing the VPN process during an active download — the cut-off is immediate on both sides) and WebRTC protection in their apps.
On jurisdiction: NordVPN is based in Panama, outside 5/9/14 Eyes agreements, with no data-retention laws. Surfshark moved from the British Virgin Islands to the Netherlands in 2024 — Europe is more constraining on judicial cooperation but technically remains outside formal 5/9/14 Eyes. For mainstream consumer use, both are equivalent in practice. For high-sensitivity use cases, Panama holds a slight theoretical edge.
The Deloitte 2024 audit confirms that NordVPN servers record no identifiable user data in accordance with the published no-log policy.
Real price over 24 months and at renewal
This is where Surfshark takes the lead. On a 24-month commitment, Surfshark drops to around £1.79/month billed upfront (roughly £43 upfront for two years), versus £2.49/month for NordVPN (roughly £60 upfront over the same period). The two-year gap reaches approximately £17.
But the calculation shifts at renewal. NordVPN moves to around £4.99/month after the first term; Surfshark to around £3.49/month. Over a 4-year horizon (two consecutive 24-month commitments), the total cost works out as:
- NordVPN: £60 + (£4.99 × 24) ≈ £180 over 4 years
- Surfshark: £43 + (£3.49 × 24) ≈ £127 over 4 years
Surfshark remains roughly £53 cheaper in the long-term scenario. That's tangible for someone planning to keep their VPN for several years without switching. Conversely, over exactly 24 months (initial commitment only, without renewal), the gap shrinks to around £17 — which can be offset by the quality-of-service differential on NordVPN's side (average speed, unblocking, support quality).
The common trick to break this calculation: disable auto-renewal before the end of the term and re-subscribe with a new account. It's technically legal but borderline — both providers tightened their anti-multi-account policies in 2025. More pragmatically: take advantage of Black Friday deals that bring renewal prices back toward introductory rates at both services.
Simultaneous devices: 10 vs unlimited
Surfshark wins this criterion without qualification. The service allows unlimited simultaneous connections on a single account. Tested up to 14 devices connected simultaneously (3 laptops, 4 smartphones, 2 tablets, 1 TV, 1 console, 3 IoT devices) with no service degradation or notification from Surfshark. NordVPN caps at 10 devices per account, which remains comfortable for 1 to 4 users but becomes limiting beyond that.
For a 2-person household with 1 laptop, 1 smartphone, and 1 TV each (6 devices total), the NordVPN limit is never reached. For a larger family or a shared flat with 4+ adults each with smartphones, laptops, smart TVs, and consoles, you mechanically exceed 10. At that point, either you manually juggle sessions (painful), or you switch to Surfshark.
A less obvious use case: sharing one account among friends or extended family members. Surfshark structurally tolerates this through its unlimited policy; NordVPN doesn't explicitly prohibit it but makes it friction-heavy beyond 10 people. It's a use case neither service markets openly, but it exists in the real world.
UX and specialised features
Surfshark has a slight edge on overall UX and originality of specialised features. The interface is more modern, and advanced settings are better organised. Several features are built in by default that NordVPN places as paid add-ons or buries in menus:
- MultiHop (double VPN with manual choice of each hop) — natively integrated on Surfshark, more limited on NordVPN (double VPN on pre-defined pairs only)
- Camouflage Mode (obfuscation for restrictive networks) — active by default on Surfshark, an advanced setting on NordVPN
- Android GPS spoofing (change system geolocation, not just IP) — Surfshark exclusive, unavailable on NordVPN
- NoBorders Mode (auto-detection of network censorship) — Surfshark only
- CleanWeb (DNS-based ad/malware blocking) — built in on Surfshark by default; equivalent is Threat Protection on NordVPN, which is actually more powerful on that side
- Meshnet (private network between your own devices) — NordVPN exclusive, particularly useful for remote file-sharing
On support, NordVPN keeps the edge: 24/7 live chat in English with technically competent agents, average response time under 2 minutes. Surfshark also offers 24/7 chat, but quality drops quickly beyond level-1 questions — you need to switch to English for advanced technical support.
Verdict by profile
The right choice depends strictly on your usage profile. Here are the factual recommendations:
-
If you want maximum speed + a recent audit + maximum streaming unblocking → NordVPN. You pay roughly £17 more over 24 months to gain 3 fewer percentage points of speed loss, 6 more percentage points of Netflix US success, the Deloitte 2024 audit, and higher-quality English support.
-
If you want the best price + unlimited devices + an entire household → Surfshark. You save roughly £17 over 24 months (£53 over 4 years), equip every device in the house without counting, and get MultiHop and Camouflage Mode built in.
-
If you're still undecided → take the quiz. Four questions about your real usage and you get a recommendation aligned with your profile. No email, no intrusive tracking.
For the majority of mainstream use cases (1–3 people, normal budget, mixed streaming/security use), NordVPN remains the most versatile. For a larger household on a budget, Surfshark is mechanically more relevant. Both services comfortably deliver on their technical promises — there's no wrong choice.
CTAs for both sides
★ Audit Deloitte 2024 · ✓ Garantie 30 jours · 14M+ utilisateurs (source : NordVPN press)
Try NordVPN — 2-year plan at £2.49/month30-day money-back guarantee · Deloitte 2024 audit · 5,400+ servers→For Surfshark, the affiliate link via CJ Affiliate is being set up. In the meantime, visit the official site directly via search to avoid unverified redirects. Our evaluation methodology applies equally to both sides — it's documented on the methodology page.
Go deeper on this choice
- NordVPN review after 8 months →Continuous testing with screenshots and documented flaws
- VPN audit across 9 tests →Reproducible protocol to validate a VPN
- Complete VPN streaming guide →Platform-by-platform strategy (Netflix, BBC, Disney+)
- Public Wi-Fi — risks in 2026 →Why a VPN still matters in an HTTPS-everywhere world
- Real VPN cost at renewal →The price trap after the first billing period
- Quiz: Which VPN should I choose? →4 questions, personalised recommendation with no email required
Article published 29 May 2026. Methodology: parallel cross-tests on NordVPN 8.12.2 and Surfshark 5.6.0 conducted over 8 months (October 2025 to May 2026) on a 1 Gbps symmetric fibre connection, MacBook Pro M2 macOS 14.4, Windows 11 24H2, Ubuntu 24.04 LTS, iOS 17, Android 14. 95 Netflix US test sessions, 60 BBC iPlayer sessions, iperf3 measurements toward Frankfurt, Ashburn, and Tokyo in triple runs. Logs and captures kept in internal archives, available on editorial request via contact.
★ Audit Deloitte 2024 · ✓ Garantie 30 jours · 14M+ utilisateurs (source : NordVPN press)
Get NordVPN30 jours satisfait ou remboursé→