When to Run Your First SeaText Test: A Readiness Checklist

Add the SeaText snippet, deploy, then open Developer Tools. Confirm the script appears in the Network tab without errors and the Console logs the initialization message. That is your first test window — do it right after the deploy finishes.

If you run a cache layer or CDN, purge it and test a second time. Cached HTML can serve an old version of the page without the snippet, giving you a false negative. The same applies after any cache clear, CDN config change, or staging-to-production promotion.

Immediate Post-Deployment Verification Checklist

• Script loads: Network tab shows the SeaText script with HTTP 200 and the async attribute present.
• Console initialization: Console logs the SeaText startup message (no red errors).
• Local storage write: Application → Local Storage shows a SeaText ID key created.
• Agent toggles on: In the SeaText dashboard, the agents you need (CRO Optimizer, Google Ads Agent, Bot Refund Agent, Translation Agent, etc.) show "Active".
• Page rewrite preview: Visit a test page with a query parameter like ?seatext_preview=1 (if enabled) and confirm headline or CTA changes appear.

What to Check in Developer Tools

Open the Console and Network tabs (F12). In Network, filter for "seatext" or the script domain. You should see one request with async and no CORS errors. In Console, look for a line such as "SeaText AI initialized" or similar. If the script is blocked by CSP, you will see a Content Security Policy error — adjust your script-src directive to allow the SeaText domain.

Local Storage must be writable. The snippet stores an anonymous visitor ID there. If your site runs in a privacy sandbox or blocks third-party storage, the ID write will fail silently and personalization agents cannot stitch sessions. Test in an incognito window to rule out extension interference.

When to Wait Before Testing

• Build still running: For SPAs (React, Vue, Angular), wait for npm run build or ng serve to finish and the dev server to report "compiled successfully".
• Cache warm-up: After a CDN purge, give the edge nodes 30–60 seconds to pull the fresh HTML before testing.
• DNS propagation: If you just pointed a new subdomain to the SeaText CDN, wait for TTL to expire (usually 5–15 minutes).
• Dashboard sync: The SeaText dashboard may take up to two minutes to reflect the new snippet installation. Refresh the Agents page before deciding something is wrong.

Cache and CDN Considerations

SeaText rewrites page content client-side after the HTML arrives. If your CDN caches the full HTML response (common with Cloudflare "Cache Everything" or Varnish), visitors may receive a cached version that never requests the SeaText script. Purge the cache immediately after snippet deployment. Schedule a second purge after any template change that moves the snippet location.

For sites using service workers (PWA), unregister or update the worker so it fetches the new HTML with the snippet. A stale service worker is the most common cause of "snippet installed but nothing happens" reports.

SPA-Specific Testing Steps

Single-page applications mount the snippet once at bootstrap. After adding the snippet to index.html (or the framework entry point), run the standard dev command: npm start, npm run serve, or ng serve. Then open the app and verify the Network and Console checks above.

If your SPA uses client-side routing, navigate between routes and confirm the script does not reload — it should persist because it lives in the root HTML. Cross-origin setups (multiple subdomains or a separate API domain) must allow the SeaText script to read/write Local Storage on each origin; otherwise the visitor ID resets on each domain hop.

Agent Activation and Configuration Verification

SeaText works through autonomous agents. After the snippet loads, log into the dashboard and activate the agents that match your goal:

• CRO Optimizer — rewrites headlines, offers, CTAs and runs A/B tests automatically.
• Google Ads Agent — matches landing page copy to the keyword that triggered the ad.
• Bot Refund Agent — detects invalid clicks and builds refund-ready evidence for Google, Meta, TikTok, Reddit.
• Translation Agent — translates pages into up to 125 languages with localised buttons and product messages.
• Visitor Source Agent — adapts the page for traffic from Google, Meta, email, referrals.
• AI SEO Content Factory — publishes indexed Q&A pages for long-tail traffic.

Each agent shows "Active" when running. Start with one or two agents, verify the changes on a low-traffic page, then expand.

Common Issues and Troubleshooting

Key Facts

Limitations and When This Advice Does Not Apply

• Server-side rendering with cached HTML: If your SSR layer caches the full page at the edge, the snippet may be stripped or never executed. Purge the SSR cache or move snippet injection to a non-cached layout partial.
• Strict CSP without unsafe-inline: The snippet is external, but inline event handlers or eval used by some frameworks can conflict. Use nonce or hash-based CSP.
• AMP pages: AMP forbids custom async scripts. SeaText does not run on AMP versions; test the canonical non-AMP URL.
• Headless CMS preview environments: Preview URLs often run on a different domain or lack the snippet. Deploy to a staging subdomain that mirrors production DNS and CDN config.

FAQ

How long after deployment should I wait before the first test?

Zero minutes. As soon as the deploy status shows "live", open the page and run the checklist. The only exception is a known CDN propagation delay — then wait for the purge to complete.

Do I need to test every page?

No. Test one representative page per template type (product, blog, landing, checkout). Agents apply rules globally; if the snippet loads on one page, it loads on all.

What if the Console shows a 404 for the SeaText script?

The snippet URL may have changed or your plan does not include the script host. Check the dashboard for the current snippet code and replace the old one.

Can I run the first test in a staging environment?

Yes, but staging must have the same CSP, CDN, and cookie/domain settings as production. A staging subdomain that blocks third-party storage will give false negatives.

Does the first test verify A/B testing is working?

The first test only confirms the snippet loads and agents are active. Variant generation and statistical significance take days to weeks depending on traffic volume.

What happens if I skip the post-cache-purge test?

You risk serving cached HTML without the snippet to real visitors for the cache TTL period. That loses personalization, bot detection, and translation for those sessions.

Is there a health-check endpoint I can ping programmatically?

SeaText does not expose a public health endpoint. The reliable signal is the Console initialization message and the Network 200 response for the script.