Your analytics dashboard and identity provider may both report login success rate while counting different things. One may use visits to the login page. Another may count only requests that reached the server. Neither definition automatically answers how many people started a login journey and completed it.
The right comparison begins with your measurement requirement. This guide explains six tool categories, the questions they typically support and the evidence to request before buying another product.

Authentication Analytics Whitepaper. Practical guidance, rollout patterns and KPIs for passkey programs.
Choose a start that reflects the metric you want: a page impression, an engaged journey or a method attempt. Record success at the intended authenticated state. Keep retries and unfinished journeys consistent with the observation window.
For example, a failed passkey attempt followed by password success is a failed method attempt inside a successful journey. An automatic prompt is also different from an explicitly initiated request.
The diagram uses passkeys as an example. It separates the application-visible request from the internal browser interface and the backend verification step. Password and OTP flows have different steps; the same definition discipline applies.
A tool can report events supplied by your application without being able to observe every internal platform action. Ask how those events are collected and what remains unknown.
These are practical groupings, not exclusive product boundaries. Many vendors span more than one category. APM means application performance monitoring; RUM means real user monitoring.
Adobe Analytics and Google Analytics 4 connect login activity to acquisition and the wider website journey. They can report explicitly collected authentication events, including browser-side outcomes. The work is defining those signals, mapping them and maintaining the implementation.
| Answers | Misses without additional collection |
|---|---|
| Acquisition, page conversion and funnels over recorded events | Authentication steps that the implementation never sends |
See the practical Adobe error-tracking setup or GA4 login-tracking guide for the relevant collection path.
Amplitude and Mixpanel support analysis of recorded product events, funnels and cohorts. A well-instrumented login can be analysed alongside activation and retention. Evaluate how method changes, retries and incomplete journeys enter that event model.
| Answers | Misses without additional collection |
|---|---|
| Event funnels, cohort behaviour and post-login activity | Outcomes or context absent from the event stream |
Quantum Metric, Glassbox, Contentsquare and FullStory help investigate interactions with the product interface. DOM-based replay can show the application's form and rendered errors. It does not itself record an operating-system biometric sheet or browser-owned passkey dropdown. Separate custom events may provide additional evidence.
| Answers | Limits |
|---|---|
| Form interaction and visible application errors | Browser and operating-system UI is outside a DOM replay |
Datadog, New Relic and Sentry can provide application errors, performance measurements and browser telemetry. Their coverage depends on the installed SDKs and configuration. A handled authentication error can be reported explicitly; it need not be an unhandled exception.
| Answers | Misses without additional collection |
|---|---|
| Service failures, latency and instrumented client-side events | Silent abandonment and authentication semantics not configured in telemetry |
Customer identity and access management (CIAM) supports authentication for a product's customers. Providers such as Auth0, Okta and Microsoft Entra ID expose information about authentication requests and decisions. Evaluate the specific product's frontend telemetry and reporting capabilities as well as its server logs.
| Answers | Limits of server logs alone |
|---|---|
| Requests received, verification decisions and policy outcomes | Journeys that stop before reaching the relevant endpoint |
Authentication observability organises available signals around login journeys: method attempts, retries, fallback and outcomes. Corbado Observe belongs here. The evaluation should focus on supported collection, the journey model and the diagnostic workflow your team needs.
| Answers | Limits |
|---|---|
| Authentication journey breakdowns and investigations from collected telemetry | Missing collection and platform-withheld information remain limits; inferred causes need qualification |
Avoid a binary matrix that labels whole categories “can” or “cannot”. Use the same test journey in each shortlisted product.
| Requirement | Evidence to request |
|---|---|
| Attempt before outcome | Event definition and where collection starts |
| Verified completion | Proof that browser success is separate from backend/session success |
| Retry and fallback | One journey containing a failed method and a successful alternative |
| Error diagnosis | Recorded error plus supporting context and any inference label |
| Support investigation | Available event history and identity/correlation rules |
| Ongoing ownership | Required custom events, configuration and maintenance |
Browser-side WebAuthn outcomes can be sent to a general analytics platform. A dedicated product's value is the collection and analysis work it supplies, rather than exclusive access to an error code.
Include a web example and a native-app example if both matter to your product. Do not assume their APIs expose identical signals.
Start by reconciling definitions and available frontend/backend evidence. A discrepancy can come from mismatched populations, collection failure or different success boundaries.
Then compare total journey completion and duration alongside method-level results. A high passkey success rate does not by itself show how much the whole product improved. Cohorts with and without passkeys may differ in other ways; use an appropriate experiment or account for selection effects before claiming causation.
The authentication analytics playbook provides broader metric definitions and reporting guidance.
Some customers retain Adobe Analytics and add Observe for detailed authentication analysis. Observe runs alongside the existing identity stack and sends pseudonymous telemetry. The purpose is to make login journeys easier to investigate across methods, environments and fallback paths.
See Login Methods in Corbado Observe →Bring a concrete investigation to a demo: repeated OTP requests, failed passkey attempts on one browser or a support case involving fallback. Compare the evidence and workflow with your current tools. Keep platform limits explicit, including ambiguous errors and browser-owned interfaces.
Corbado is the Passkey Intelligence Platform for large-scale CIAM teams running consumer authentication. We help you see what IDP logs and generic analytics tools can't: where passkeys, passwords, OTP, social login and fallback journeys succeed, stall or fail, which devices and browsers create friction, and when an OS update silently breaks login. Two products: Corbado Observe layers process mining and observability across authentication journeys. Corbado Connect adds managed passkeys with analytics built in alongside your IDP. VicRoads runs passkeys for 5M+ users with Corbado (+80% passkey activation). Talk to a Passkey Expert →
Several categories can report it when they receive suitable events. Check how each implementation defines attempts, verified success, retries and unfinished journeys before comparing percentages.
They may measure different stages or populations. Check collection coverage, correlation, time windows and definitions before interpreting the difference as a login problem.
A DOM-based replay does not itself record browser or operating-system interfaces. Separate application events can provide context about an authentication request's outcome.
No. Some platform errors are deliberately ambiguous. Context can support investigation, but inferred causes should remain distinguishable from directly observed results.
Observe can complement an existing analytics and identity stack with a dedicated authentication journey model and diagnostic workflow. Evaluate the additional coverage against your team's actual questions.
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