MARKETING
Preview-deploy SEO gate that comments on the pull request
When Vercel builds a preview deploy for a pull request, crawls the changed landing pages on the preview URL and posts a pass/fail SEO check as a GitHub PR comment before merge.
How it runs
The automated pipeline, trigger to output.
- TriggerVercel preview deploy ready for a PRVercel
- ActionCrawl changed landing pages on preview URLFirecrawl
- LogicEvaluate metrics and tags against thresholds
- OutputPost pass/fail SEO check as PR commentGitHub
What it does
Moves the SEO check left, to before merge. When a PR gets a Vercel preview deploy, it crawls the affected landing pages on the preview URL, runs the same Core Web Vitals and meta-tag checks you use in production, and writes the verdict straight into the pull request as a comment.
When to use it
Use it when you want engineers to catch SEO regressions while the change is still reviewable, not after it ships. Reviewers see broken canonicals, missing descriptions, or a slow LCP right in the PR thread and can request changes instead of filing cleanup tasks later.
How it works
- 1A Vercel preview-deploy webhook fires with the PR number and preview URL.
- 2Firecrawl crawls the landing pages on the preview URL and gathers metrics and head tags.
- 3A logic step evaluates each page against thresholds and produces a pass/fail summary with the specific failures.
- 4A GitHub comment is posted on the originating pull request with the results table and an overall verdict.
Set it up
What you configure once, before turning it on.
- 1Connect VercelDeploys, runtime logs, analytics.
- 2Connect FirecrawlCrawl, scrape, structured extract.
- 3Connect GitHubRepos, issues, pull requests, actions.
- 4Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 5Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 6Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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