PreFlight / website security and SEO guide
Website scanner and SEO guides
These guides answer the question first, show the limits of automation, and turn the answer into a workflow you can run again after the next change.
A route for the next question
Useful pages have a job to do.
Pick the page that matches the decision in front of you. Each brief explains the scope, the evidence to capture, the limits of automation, and the next action that makes the result useful.
How to Scan Website Security
how to scan website security: how to move from a URL to a prioritized security checklist without confusing visibility with a full pentest with a practical, evidence-led workflow for site owners and developers.
How to Check if a Website Is Secure
how to check if a website is secure: which visible and operational signals give a useful first answer about trust and risk with a practical, evidence-led workflow for people evaluating a live website.
How to Fix a Noindex Tag
how to fix noindex tag: how to find the directive, decide whether it is intentional, and verify the fix with a practical, evidence-led workflow for site owners whose pages are missing from Google.
How to Fix Sitemap Indexing Problems
how to fix sitemap indexing: how to make the sitemap, canonical URLs, internal links, and page quality tell one consistent story with a practical, evidence-led workflow for content teams with discovered but unindexed URLs.
Website Security Checklist
website security checklist: the practical checks worth running before a website carries real users, data, or money with a practical, evidence-led workflow for teams preparing a public release.
SaaS Launch Audit Guide
SaaS launch audit: how to audit the customer path from signup through payment, fulfillment, support, and recovery with a practical, evidence-led workflow for founders shipping their first paid product.
How to Test Stripe Webhooks
how to test Stripe webhooks: how to prove that a payment event is verified, processed, retried safely, and reflected in access with a practical, evidence-led workflow for developers implementing payment fulfillment.
How to Test Supabase RLS
how to test Supabase RLS: how to test the behavior users experience instead of trusting a policy file alone with a practical, evidence-led workflow for developers protecting tenant data.
How to Secure a Next.js App
how to secure a Next.js app: how to connect framework configuration, browser headers, route protection, secrets, and deployment checks with a practical, evidence-led workflow for Next.js developers.
How to Secure AI-Generated Code
how to secure AI-generated code: how to review the deployed behavior that code generation can accidentally leave unsafe with a practical, evidence-led workflow for developers using code-generation tools.
How to Find Exposed API Keys
how to find exposed API keys: how to search public assets and decide whether a finding is a real secret that needs rotation with a practical, evidence-led workflow for frontend and security teams.
How to Configure a Content Security Policy
how to configure CSP: how to introduce a useful policy without breaking the scripts and connections a product needs with a practical, evidence-led workflow for teams hardening web applications.
How to Configure CORS Safely
how to configure CORS: how to allow the frontend origins that need access without turning a credentialed API into a public one with a practical, evidence-led workflow for API developers.
How to Improve AI Visibility
how to improve AI visibility: how to make important product facts crawlable, attributable, and easy to quote accurately with a practical, evidence-led workflow for brands that want answer engines to understand them.
How to Make a Site Citable by ChatGPT
how to make a website citable by ChatGPT: how to give retrieval systems a clear source page without relying on a magic file or keyword stuffing with a practical, evidence-led workflow for product and content teams.
How to Make a Website Indexable
how to make a website indexable: how to remove technical blockers and create a coherent discovery path for search crawlers with a practical, evidence-led workflow for site owners launching a new domain.
Diagnose Discovered but Currently Not Indexed
discovered currently not indexed fix: how to separate crawl access from crawl priority and content quality with a practical, evidence-led workflow for SEO operators using Search Console.
How to Avoid Duplicate Content
how to avoid duplicate content: how to choose one useful URL and keep redirects, canonicals, links, and sitemaps aligned with a practical, evidence-led workflow for teams with variants, filters, and host aliases.
How to Create a Useful Comparison Page
how to create a comparison page: how to compare tools honestly so the page helps a buyer instead of becoming a thin competitor doorway with a practical, evidence-led workflow for product marketing teams.
How to Build a Blog Topic Cluster
how to build a blog topic cluster: how to connect one valuable hub with supporting articles that answer distinct questions with a practical, evidence-led workflow for SaaS content teams.
How to Write an SEO Article People Trust
how to write an SEO article: how to lead with the answer, show evidence, explain limits, and give the reader a next step with a practical, evidence-led workflow for founders and editorial teams.
How to Add Structured Data
how to add structured data: how to choose markup that matches visible content and validate it without overclaiming rich results with a practical, evidence-led workflow for developers adding schema to public pages.
How to Plan Internal Links
how to plan internal links: how to help people and crawlers move from a broad answer to the exact next guide with a practical, evidence-led workflow for teams expanding a documentation or blog site.
How to Choose a Canonical URL
how to choose a canonical URL: how to identify the one address that should collect discovery and ranking signals with a practical, evidence-led workflow for developers managing host and route variants.
How to Write Robots.txt
how to write robots.txt: how to keep private surfaces out of crawl paths while leaving important public content discoverable with a practical, evidence-led workflow for site owners controlling crawler access.
How to Run an SEO Audit
how to run an SEO audit: how to turn a crawl into a ranked work queue instead of a spreadsheet of disconnected warnings with a practical, evidence-led workflow for SaaS and content teams.
How to Run an AEO Audit
how to run an AEO audit: how to test whether a page can be retrieved, understood, attributed, and cited with a practical, evidence-led workflow for teams optimizing for AI answers.
How to Build a Website Release Gate
website release gate checklist: how to make a deploy decision from current evidence instead of a last-minute manual smoke test with a practical, evidence-led workflow for teams shipping changes frequently.
What Is a Website Security Scanner?
what is a website security scanner: what an automated scanner can observe from a URL and where a manual review begins with a practical, evidence-led workflow for people choosing a first security tool.
Website Scanner vs Vulnerability Scanner
website scanner vs vulnerability scanner: how broad website health checks differ from focused vulnerability discovery with a practical, evidence-led workflow for buyers comparing scanner terminology.
How to Audit an AI-Built App
how to audit an AI-built app: how to inspect generated routes, data access, secrets, payments, and recovery behavior before launch with a practical, evidence-led workflow for developers shipping vibe-coded products.
Website Scanner Checklist
website scanner checklist: which URLs, signals, and expected behaviors to include in a useful scan with a practical, evidence-led workflow for site owners preparing a repeatable scan.
Noindex vs Canonical: What Is the Difference?
noindex vs canonical: when to exclude a page and when to consolidate duplicate versions with a practical, evidence-led workflow for SEO operators debugging indexing.
Why a Sitemap URL Is Not Indexed
sitemap URL not indexed: why discovery through a sitemap does not guarantee crawl or indexing with a practical, evidence-led workflow for site owners using Search Console.
SEO vs AEO: How They Work Together
SEO vs AEO: which fundamentals help both search engines and answer engines and which signals are distinct with a practical, evidence-led workflow for content and growth teams.
JSON-LD Structured Data for SaaS
JSON-LD for SaaS website: which schema types make a product, organization, article, and FAQ easier to interpret with a practical, evidence-led workflow for SaaS marketing teams and developers.
Security Headers Guide for Websites
website security headers guide: which headers to add first, what they protect, and how to avoid breaking required integrations with a practical, evidence-led workflow for developers hardening public sites.
Pre-Deploy Security Checklist
pre-deploy security checklist: what to verify in code, configuration, public assets, and the live host before promotion with a practical, evidence-led workflow for teams shipping a production release.
Public API Security Guide
public API security guide: how to design and check authentication, authorization, rate limits, input handling, and error responses with a practical, evidence-led workflow for SaaS teams exposing APIs.
Website Health Check Guide
website health check guide: how to combine availability, performance, accessibility, security, and discoverability into one useful review with a practical, evidence-led workflow for operators evaluating a live site.
How to Fix Redirect Chains
how to fix redirect chains: how to collapse extra hops and make the final canonical URL unambiguous with a practical, evidence-led workflow for teams moving routes or domains.
How to Fix Soft 404 Pages
how to fix soft 404: how to return the right status and offer a useful replacement without misleading crawlers with a practical, evidence-led workflow for content teams retiring pages.
How to Improve Crawl Efficiency for a SaaS Site
crawl budget for SaaS website: how to keep crawlers focused on useful public pages instead of duplicates or private surfaces with a practical, evidence-led workflow for teams with docs, blogs, and application routes.
Technical SEO for Next.js
technical SEO for Next.js: how to configure metadata, static routes, rendering, canonical URLs, robots, sitemap, and structured data with a practical, evidence-led workflow for Next.js developers and marketers.
SEO for Supabase-Backed Websites
SEO for Supabase website: how to keep public rendering and private data boundaries separate while pages remain crawlable with a practical, evidence-led workflow for teams combining a public site with Supabase.
Choosing a Security Scanner for a Startup
security scanner for startups: how to compare coverage, setup, evidence, cost, and the work the team will really repeat with a practical, evidence-led workflow for startup founders buying an early tool.
How Agencies Can Standardize Website Scans
website scanner for agencies guide: how to create a consistent audit and handoff without mixing client access or evidence with a practical, evidence-led workflow for agencies managing multiple client websites.
How to Keep Security Audit Evidence
security audit evidence checklist: which records make an automated finding reproducible and a remediation defensible with a practical, evidence-led workflow for teams preparing reviews or diligence.
Start outside-in
Find the issue. Prove the fix.
Run the free public audit before you connect providers. PreFlight shows the visible risk first, then helps you verify the workflows scanners cannot reach.