diff --git a/bin/accessibility-automation/constants.js b/bin/accessibility-automation/constants.js
index 496667a9..7d5480ff 100644
--- a/bin/accessibility-automation/constants.js
+++ b/bin/accessibility-automation/constants.js
@@ -1 +1,4 @@
-exports.API_URL = 'https://accessibility.browserstack.com/api';
+const { getEnvironmentUrl } = require('../helpers/environmentUrl');
+
+// BROWSERSTACK_ENV=preprod|staging (internal only) swaps the host; production when unset.
+exports.API_URL = getEnvironmentUrl('https://accessibility.browserstack.com/api');
diff --git a/bin/helpers/config.js b/bin/helpers/config.js
index 991f8201..6c640d7c 100644
--- a/bin/helpers/config.js
+++ b/bin/helpers/config.js
@@ -1,4 +1,5 @@
 var config = require('./config.json');
+const { getEnvironmentUrl } = require('./environmentUrl');
 
 config.env = process.env.BSTACK_CYPRESS_NODE_ENV || "production";
 
@@ -10,6 +11,11 @@ if(config.env !== "production") {
   config.rails_host = process.env.RAILS_HOST;
   config.dashboardUrl = process.env.DASHBOARD_URL;
   config.usageReportingUrl = process.env.USAGE_REPORTING_URL;
+} else {
+  // BROWSERSTACK_ENV=preprod|staging (internal only); a no-op when unset.
+  ['uploadUrl', 'rails_host', 'dashboardUrl', 'turboScaleUrl', 'turboScaleAPIUrl'].forEach((key) => {
+    config[key] = getEnvironmentUrl(config[key]);
+  });
 }
 
 config.cypress_v1 = `${config.rails_host}/automate/cypress/v1`;
diff --git a/bin/helpers/environmentUrl.js b/bin/helpers/environmentUrl.js
new file mode 100644
index 00000000..02fa9871
--- /dev/null
+++ b/bin/helpers/environmentUrl.js
@@ -0,0 +1,55 @@
+'use strict';
+
+// Internal, non-production only: BROWSERSTACK_ENV=preprod|staging points the cli at that
+// environment's hosts, the same switch browserstack-binary (core/utils/environment-url.js) and
+// browserstack-node-agent use. Unset, or any other value, keeps the production hosts.
+const ENV_VAR = 'BROWSERSTACK_ENV';
+
+const PREPROD_HOSTS = [
+  ['api-cloud.browserstack.com', 'api-cloud-preprod.bsstag.com'],
+  ['api.browserstack.com', 'api-preprod.bsstag.com'],
+  ['automate.browserstack.com', 'automate-preprod.bsstag.com'],
+  ['automation.browserstack.com', 'automation-preprod.bsstag.com'],
+  ['collector-observability.browserstack.com', 'collector-observability-preprod.bsstag.com'],
+  ['accessibility.browserstack.com', 'accessibility-preprod.bsstag.com'],
+  ['grid.browserstack.com', 'grid-preprod.bsstag.com'],
+];
+
+const STAGING_HOSTS = [
+  ['api-cloud.browserstack.com', 'api-cloud-devtestops.bsstag.com'],
+  ['api.browserstack.com', 'apidevtestops.bsstag.com'],
+  ['automate.browserstack.com', 'automate-devtestops.bsstag.com'],
+  ['automation.browserstack.com', 'automation.bsstag.com'],
+  ['collector-observability.browserstack.com', 'collector-observability-devtestops.bsstag.com'],
+  ['accessibility.browserstack.com', 'accessibility.bsstag.com'],
+  ['grid.browserstack.com', 'grid-devhst.bsstag.com'],
+];
+
+const getEnvironment = () => {
+  const value = (process.env[ENV_VAR] || '').trim().toLowerCase();
+  if (value === 'preprod' || value === 'pre-prod') return 'preprod';
+  if (value === 'staging' || value === 'stag') return 'staging';
+  return undefined;
+};
+
+// Swaps the host only (exact match), so paths, ports and query strings are kept and a host that
+// merely contains a mapped name (e.g. app-automate.browserstack.com) is left alone.
+const getEnvironmentUrl = (url) => {
+  const env = getEnvironment();
+  if (!env || typeof url !== 'string') return url;
+  const hosts = env === 'preprod' ? PREPROD_HOSTS : STAGING_HOSTS;
+  let parsed;
+  try {
+    parsed = new URL(url);
+  } catch (err) {
+    return url;
+  }
+  const match = hosts.find(([from]) => parsed.hostname === from);
+  if (!match) return url;
+  parsed.hostname = match[1];
+  const result = parsed.toString();
+  // URL.toString() adds a trailing slash to a bare origin; keep the caller's shape.
+  return url.endsWith('/') ? result : result.replace(/\/$/, '');
+};
+
+module.exports = { ENV_VAR, getEnvironment, getEnvironmentUrl };
diff --git a/bin/testObservability/helper/constants.js b/bin/testObservability/helper/constants.js
index 19e7517c..8701e3f8 100644
--- a/bin/testObservability/helper/constants.js
+++ b/bin/testObservability/helper/constants.js
@@ -1,4 +1,5 @@
 const path = require('path');
+const { getEnvironmentUrl } = require('../../helpers/environmentUrl');
 
 exports.consoleHolder = Object.assign({},console);
 exports.BATCH_SIZE = 1000;
@@ -37,7 +38,9 @@ const REMOTE_API_URL_ENV = 'BROWSERSTACK_TEST_OBSERVABILITY_REMOTE_API_URL';
 exports.API_URL_ENV = API_URL_ENV;
 exports.REMOTE_API_URL_ENV = REMOTE_API_URL_ENV;
 
-exports.apiUrl = () => httpsOverride(API_URL_ENV) || DEFAULT_API_URL;
+// An explicit override wins; otherwise BROWSERSTACK_ENV=preprod|staging picks that environment's
+// collector. setSystemEnvs forwards the result to the remote reporter, so both sides agree.
+exports.apiUrl = () => httpsOverride(API_URL_ENV) || getEnvironmentUrl(DEFAULT_API_URL);
 exports.remoteReporterApiUrl = () => httpsOverride(REMOTE_API_URL_ENV) || exports.apiUrl();
 
 exports.IPC_EVENTS = {
diff --git a/bin/testObservability/helper/helper.js b/bin/testObservability/helper/helper.js
index ddd2e8c7..3ce5c276 100644
--- a/bin/testObservability/helper/helper.js
+++ b/bin/testObservability/helper/helper.js
@@ -15,6 +15,7 @@ const { runOptions } = require('../../helpers/runnerArgs')
 
 const pGitconfig = promisify(gitconfig);
 
+const { getEnvironmentUrl } = require('../../helpers/environmentUrl');
 const logger = require("../../helpers/logger").winstonLogger;
 const utils = require('../../helpers/utils');
 const helper = require('../../helpers/helper');
@@ -114,7 +115,7 @@ exports.printBuildLink = async (shouldStopSession, exitCode = null) => {
         && process.env.BS_TESTOPS_BUILD_HASHED_ID != "null" 
         && process.env.BS_TESTOPS_BUILD_HASHED_ID != "undefined") {
           console.log();
-          logger.info(`Visit https://automation.browserstack.com/builds/${process.env.BS_TESTOPS_BUILD_HASHED_ID} to view build report, insights, and many more debugging information all at one place!\n`);
+          logger.info(`Visit ${getEnvironmentUrl('https://automation.browserstack.com')}/builds/${process.env.BS_TESTOPS_BUILD_HASHED_ID} to view build report, insights, and many more debugging information all at one place!\n`);
       }
     } catch(err) {
       exports.debug('Build Not Found');
diff --git a/test/unit/bin/helpers/environmentUrl.js b/test/unit/bin/helpers/environmentUrl.js
new file mode 100644
index 00000000..f296fd2f
--- /dev/null
+++ b/test/unit/bin/helpers/environmentUrl.js
@@ -0,0 +1,66 @@
+const { expect } = require('chai');
+
+const { getEnvironment, getEnvironmentUrl } = require('../../../../bin/helpers/environmentUrl');
+
+describe('environmentUrl (BROWSERSTACK_ENV)', () => {
+  const original = process.env.BROWSERSTACK_ENV;
+  afterEach(() => {
+    if (original === undefined) delete process.env.BROWSERSTACK_ENV;
+    else process.env.BROWSERSTACK_ENV = original;
+  });
+
+  it('leaves every url unchanged when unset', () => {
+    delete process.env.BROWSERSTACK_ENV;
+    expect(getEnvironment()).to.equal(undefined);
+    expect(getEnvironmentUrl('https://api.browserstack.com')).to.equal('https://api.browserstack.com');
+  });
+
+  it('leaves urls unchanged for an unknown value', () => {
+    process.env.BROWSERSTACK_ENV = 'production';
+    expect(getEnvironment()).to.equal(undefined);
+    expect(getEnvironmentUrl('https://accessibility.browserstack.com/api')).to.equal('https://accessibility.browserstack.com/api');
+  });
+
+  it('maps every preprod host the cli uses, keeping paths', () => {
+    process.env.BROWSERSTACK_ENV = 'Preprod';
+    expect(getEnvironmentUrl('https://api.browserstack.com')).to.equal('https://api-preprod.bsstag.com');
+    expect(getEnvironmentUrl('https://api-cloud.browserstack.com/automate-frameworks/cypress/upload'))
+      .to.equal('https://api-cloud-preprod.bsstag.com/automate-frameworks/cypress/upload');
+    expect(getEnvironmentUrl('https://automate.browserstack.com/dashboard/v2/builds/'))
+      .to.equal('https://automate-preprod.bsstag.com/dashboard/v2/builds/');
+    expect(getEnvironmentUrl('https://automation.browserstack.com')).to.equal('https://automation-preprod.bsstag.com');
+    expect(getEnvironmentUrl('https://collector-observability.browserstack.com'))
+      .to.equal('https://collector-observability-preprod.bsstag.com');
+    expect(getEnvironmentUrl('https://accessibility.browserstack.com/api')).to.equal('https://accessibility-preprod.bsstag.com/api');
+  });
+
+  it('accepts pre-prod and maps staging', () => {
+    process.env.BROWSERSTACK_ENV = 'pre-prod';
+    expect(getEnvironment()).to.equal('preprod');
+    process.env.BROWSERSTACK_ENV = 'stag';
+    expect(getEnvironmentUrl('https://api.browserstack.com')).to.equal('https://apidevtestops.bsstag.com');
+  });
+
+  it('matches whole hosts only', () => {
+    process.env.BROWSERSTACK_ENV = 'preprod';
+    expect(getEnvironmentUrl('https://app-automate.browserstack.com/x')).to.equal('https://app-automate.browserstack.com/x');
+    expect(getEnvironmentUrl('https://eds.browserstack.com:443/send_event_cy_internal'))
+      .to.equal('https://eds.browserstack.com:443/send_event_cy_internal');
+    expect(getEnvironmentUrl('not a url')).to.equal('not a url');
+  });
+
+  it('feeds the observability collector default, while an explicit override still wins', () => {
+    const { apiUrl } = require('../../../../bin/testObservability/helper/constants');
+    const savedOverride = process.env.BROWSERSTACK_TEST_OBSERVABILITY_API_URL;
+    delete process.env.BROWSERSTACK_TEST_OBSERVABILITY_API_URL;
+    try {
+      process.env.BROWSERSTACK_ENV = 'preprod';
+      expect(apiUrl()).to.equal('https://collector-observability-preprod.bsstag.com');
+      process.env.BROWSERSTACK_TEST_OBSERVABILITY_API_URL = 'https://collector.example.test';
+      expect(apiUrl()).to.equal('https://collector.example.test');
+    } finally {
+      if (savedOverride === undefined) delete process.env.BROWSERSTACK_TEST_OBSERVABILITY_API_URL;
+      else process.env.BROWSERSTACK_TEST_OBSERVABILITY_API_URL = savedOverride;
+    }
+  });
+});