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Understand production from the inside out

With real-time infrastructure and traffic insights, Vercel is the mission control for frontend applications.
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5xx

/api/auth error rate increased to 42%

Investigating
Alerts
ProEnterprise

Proactive Anomaly Detection and Alerting

See traffic spikes and usage anomalies to pinpoint and resolve issues before they impact users.

Dashboard
All Plans

Framework-aware insights

App usage and performance metrics, in a way that mirrors your app structure.

Function Invocations

2xx
4xx
5xx
300k150k0
RouteError RateLatencyRequests
/app/[team]/projects
0%185ms421,124
/app/[team]/[project]/overview
11%585ms211,521
/blog/[slug]
0%35ms121,024
/pricing
0%585ms120,123

Real data points collected from your users’ devices for an authentic evaluation of their experiences.

Query
ProEnterprise

Quick, accurate debugging

Detect and diagnose issues in your web applications by surfacing errors, traffic, and performance data with custom queries and visualizations.

  • 429 Status Codes by Host, Path

    HostSource_pathSum(Requests)
    test.acme.co/demo21,0124
    chat.acme.co/api/chat19,248
    sdk.acme.co/api/prompt1,109
    Track and analyze the performance of different parts of your site right in the Vercel dashboard. Leverage example queries to quickly resolve issues and optimize your projects.

  • Limit

    Edge requests Count
    NSum
    Last 12 hours

    Group by

    Project

    Filter

    ProjectisACME Site
    Create queries to debug and optimize bandwidth, errors, performance, and bot traffic issues.
Logs
All Plans

View, search, inspect

Understand your application behavior with a view of all logs generated by every function in every deployment environment.

  • 2M logs total found...

    Time

    Host

    Request

    Message

    13:39:24.59

    200

    acme.co

    POST

    /api/create

    Wrote 5 entries to database.

    13:39:24.57

    200

    acme.co

    GET

    /docs

    User is authenticated

    13:39:24.50

    200

    acme.co

    GET

    /docs

    13:39:24.51

    500

    acme.co

    POST

    /api/feature-flags

    [FetchError]: Failed to load data

    13:39:24.50

    200

    acme.co

    GET

    /api/jwt

    Expired. Generating new token...

    13:39:24.42

    200

    acme.co

    POST

    /stream/external

    13:39:24.40

    200

    acme.co

    GET

    /

    13:39:24.31

    200

    acme.co

    GET

    /changelog

    Found 10 entries

    View all runtime logs generated by Vercel's infrastructure across all environments.
  • GET/blog-posts
    217ms
    GET/post/1
    110ms
    GET/post/2
    111ms
    GET/post/3
    108ms
    GET/track-view
    38ms
    GET/track-view
    38ms
    GET/track-view
    38ms
    GET/track-view
    38ms
    GET/track-view
    38ms
    See the status, duration, URL, and a trace for each outgoing request.
  • Message
    [middleware: "middleware"] /app/front
    /api/exp status=200
    /api/exp status=200
    [middleware: "middleware"...
    /changelog status=200
    Copy share URL
    Export to CSV
    Export to JSON
    Inspect and share your runtime logs without any third-party integrations.
Third Party
ProEnterprise

Instrument, collect, and send data with flexibility

  • Datadog
    New Relic
    More...
    0ms166ms333ms500ms
    Use your favorite tools. With OpenTelemetry (OTEL), send traces from your functions to application performance monitoring (APM) vendors.

  • acme-site

    4,815,162 Logs

    Log Drains. Share data with your favorite logging provider for advanced alerting.

Break out of the black box

View security

Prevent regressions.

Ship new work without breaking customer experiences, and know exactly where to iterate after.

Proactively defend.

Track anomalies to shut down threats as they happen with advanced monitoring.

Total transparency.

Granular insights into application performance to ensure you're always up and running.

Web Analytics
All Plans

Understand your engagement

Providing comprehensive insights into your website’s visitors, tracking topic pages, referrers, and demographics like location, operating systems, and browser info.

  • yoursite.com
    First-party, privacy-friendly Data sent through your domain to avoid ad blockers.
  • Find your top performers Identify your best sources and most effective content.
  •  
    import { track } from
      '@vercel/analytics'
     
    function SignupButton() {
      return (
        <button
          onClick={() => {
            track('Signup', {
              location: 'Hero'
            });
          }}
        />
      );
     
    Track custom events without third-party scripts, for Pro and Enterprise.
  • Web Analytics Plus UTM parameters, more events, and longer report windows.
Speed Insights

Real users, real metrics

See how your site performs for actual visitors across devices, networks, and regions.

  • P75
    P90
    P95
    P99

    First Contentful Paint

    1.01s
    -30%

    Poor (5)

    /faqs21
    /campaign56

    To Improve (12)

    /support12
    /holidays38

    Great (100+)

    /home89
    /buy31

    Real data points collected from your users’ devices for an authentic evaluation of their experiences.

  • 99

    Real Experience Score

    +25%

    The combined score of your Web Vitals experienced by your visitors.

    First Contentful Paint

    1.01

    s

    Largest Contentful Paint

    1.42

    s

    Interaction to Next Paint

    1.01

    s

    Cumulative Layout Shift

    0.02

    Understand Core Web Vitals like First Contentful Paint, Largest Contentful Paint, Cumulative Layout Shift.

Inspect your app

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