Zscaler vs Netskope for DLP, CASB, inspection, and private access

A legacy secure web gateway, a separate CASB, and a VPN replacement leave two policy consoles and an inspection exception list that grows every time a pinned app breaks. The decision between Zscaler and Netskope is how TLS is decrypted, where DLP runs, whether SaaS is covered inline and at rest, how private apps are brokered, and what the path does to performance.

Both are cloud-delivered. Zscaler’s SSL/TLS inspection guide tells you to start in a test location, install a root, and bypass certificate-pinned apps and mutually authenticated TLS, which Zscaler does not decrypt. Netskope’s NewEdge page describes 120+ data centers in 80+ regions, with a stated traffic-processing SLA under 10 ms. A like-for-like processing-latency SLA was not found on the Zscaler pages opened. Current commercial dollars were not on either vendor’s pricing site. Broader shortlists sit on SSE tools and ZTNA tools.

	Zscaler	Netskope
Inspection	ZIA SSL/TLS inspection. Choose the Zscaler intermediate or your own CA, push the root, then expand by URL category and cloud app. Mutually authenticated TLS is not decrypted.	Inline inspection on NewEdge after traffic is steered. SSL decryption policy decides what is decrypted. The March 2026 NewEdge datasheet calls out TLS 1.3 support on that network.
DLP	ZIA DLP for data in use and in motion, with or without content inspection, Zscaler DLP engines or a forward to a third-party DLP. The deployment guide says start in monitor, then block.	Real-time DLP on steered web and SaaS traffic, and DLP profiles on private app segments for HTTP and HTTPS. Depth still depends on what the quote enables.
CASB	Inline controls follow the ZIA proxy path. SaaS Security API is the out-of-band scan of data at rest in managed SaaS. Confirm which SaaS tenants are connected.	Deployment options say most customers combine API connectors for data at rest with an inline proxy. CASB API is retrospective, not a substitute for the inline policy.
Private access	ZPA, with App Connectors in front of private applications. Confirm the quote actually includes private access for the users who need it.	Netskope One Private Access, with Publishers and the Netskope One Client or browser access. DLP on those private apps is a separate policy from web DLP. Confirm Private Access is on the quote, not assumed from an SSE-only line.
Who operates it	The team that owns ZIA inspection exceptions, DLP incidents, SaaS API connections, and ZPA app segments.	The team that owns NewEdge steering, SSL decryption policy, CASB API apps, and Private Access publishers.

Pages opened 3 Oct 2026: Zscaler SSL/TLS inspection, the ZIA DLP deployment guide, the SaaS Security API deployment guide, and the local-inspection reference architecture; Netskope NewEdge, deployment options, CASB API protection, and DLP profiles for private app segments. Neither product was run in a paid tenant.

Zscaler

Netskope

Inspection, DLP, and CASB

Inspection is what makes DLP and inline CASB able to see the payload. Treat the exception list as part of the design, not as a footnote.

	Zscaler	Netskope
How TLS is turned on	Deploy the root first. Zscaler’s guide says enable inspection for a small location, begin with risky URL categories, and keep Finance and Health out until privacy review says otherwise. Firefox needs its own certificate store. Chrome and Edge share one. Certificate-pinned desktop apps go on the do-not-decrypt list.	Steering sends traffic to NewEdge, then an SSL decryption policy allows or bypasses decrypt. A matching staged category rollout, written at the same level of detail as Zscaler’s SSL guide, was not found in the Netskope pages opened. Do not read that as an absence of bypass controls.
What stays encrypted	Mutually authenticated TLS is not decrypted. Pinned apps fail closed unless bypassed. Transparent proxy mode treats an exemption for Miscellaneous or Unknown as an exemption for almost all IP traffic. Explicit forwarding does not.	Policy chooses do-not-decrypt destinations. The pages opened do not list a mutually authenticated TLS limitation in the same words as Zscaler’s guide. That specific limit was not found in this research, which is not a claim that Netskope decrypts those sessions.
DLP action	Monitor or block with Zscaler engines, or forward a copy to a third-party DLP. Content inspection can be off. New rules should monitor until false positives drop.	Real-time protection policies, including on private applications that are HTTP or HTTPS. The private-app DLP article covers Browser Access and Client Access. Non-HTTP private apps were not given the same DLP statement on that page.
SaaS at rest versus in motion	In motion follows the ZIA proxy and inline DLP. At rest is SaaS Security API scan schedules against managed tenants. One path does not cover the other.	In motion is the inline proxy on NewEdge. At rest is CASB API on managed apps. Netskope’s deployment page says most customers run both.

That ticket is the exception-list edge case, after the inspection design above. A cloud console, a CI job, or a certificate-pinned client will break under broad TLS inspection on either product. Zscaler’s guide is explicit about pinned apps and about not decrypting mutual TLS. The Netskope pages opened did not walk through that AWS-console case. Staff the bypass on the product you deploy, and do not treat one community ticket as proof the other product never blocks a console.

Private access, performance, and deployment

	Zscaler	Netskope
Private access path	ZPA App Connectors sit in front of the private application. Users reach app segments through the client or a clientless path when that path is licensed. Private access is not the ZIA internet inspection path.	Publishers sit in front of private applications. The client can steer private-app traffic with web and SaaS traffic. Browser access covers users without the client. DLP for those HTTP and HTTPS private apps is its own real-time policy.
Performance conditions that are written down	The local-inspection reference architecture sizes a ZIA Private Service Edge for sites whose uplink is above 1 Gbps or whose download is above 2 Gbps, because inspection would otherwise hairpin. A ZIA Virtual Service Edge needs at least two instances for redundancy, and Zscaler recommends a TLS acceleration card when that virtual edge inspects 100 Mbps or more. A cloud processing-latency SLA in milliseconds was not found on the pages opened.	The NewEdge page says the network is engineered for single-digit millisecond on-ramps and states an SLA under 10 ms for traffic processing, with direct peering to large SaaS providers. That is a vendor SLA statement, not a measurement from this page. The March 2026 datasheet also describes single-pass inspection on bare metal in each data center.
How traffic gets there	Zscaler Client Connector for users, plus Private Service Edge or Virtual Service Edge when inspection must stay local. ZPA adds App Connectors. GRE and IPsec branch on-ramps were not in the Zscaler deployment pages opened. That gap is not a claim that those on-ramps are absent.	Netskope One Client and clientless access, IPsec and GRE tunnels, Netskope One SD-WAN when the purchase includes it, and NewEdge Express Connect for private interconnect. API connectors cover managed SaaS at rest. The client steers. Proxy and security processing stay in the cloud.
What to confirm on the quote	That the users who need private apps are entitled to ZPA, that SaaS Security API tenants are in scope, and that advanced DLP is not an unnamed add-on. Dollar amounts on zscaler.com were not published on the pages used here.	That Private Access and DLP depth are on the SSE line you are signing, and that SD-WAN is a separate SASE expansion if branches are in scope. Dollar amounts on netskope.com were not published on the pages used here.

2024 procurement prices

These are historical public-sector lists. They are not the current commercial price, and they are not a reason to prefer either product in 2026.

UK G-Cloud FY24, recorded earlier on this page for Zscaler user editions, per user per year: Business USD $225, Business Plus USD $300, Business Prime USD $375, Transformation USD $450. The citation did not add a commitment term beyond that per-year unit. Treat the names as renewal-era edition labels, not as today’s bundle map.

A May 2024 UK G-Cloud PDF, also previously recorded here, listed Netskope under-100-user SKUs per user per year: SSE Professional USD $213.16, SSE Enterprise USD $257.00, SSE Private Access Professional USD $338.61, SSE Private Access Enterprise USD $462.00. Same limit: historical, per user, per year, and not a current quote. SSE and SSE Private Access were already different lines on that list.

Choose Zscaler when ZIA TLS inspection, ZIA DLP, SaaS Security API, and ZPA App Connectors are the controls you will operate, and when local Private Service Edge or Virtual Service Edge sizing matches sites that cannot hairpin. Choose Netskope when NewEdge steering, inline plus CASB API, private-app DLP, and Publishers are the controls you will operate, including SD-WAN only if SASE is actually on the quote. Get a current quote for either. Do not use the FY24 or May 2024 unit prices as that quote.