Robots.txt Builder
AI CRAWLER READYCompose robots.txt visually. Control AI training bots (GPTBot, Google-Extended, Claude, Perplexity) individually.
# Generated by SEOAcademys robots.txt builder User-agent: * Allow: / Disallow: /admin Disallow: /private Disallow: /cart Disallow: /checkout # AI Crawlers User-agent: GPTBot Allow: / User-agent: ChatGPT-User Allow: / User-agent: Google-Extended Allow: / User-agent: PerplexityBot Allow: / User-agent: ClaudeBot Allow: / User-agent: CCBot Allow: / User-agent: anthropic-ai Allow: / User-agent: Applebot-Extended Allow: / User-agent: Bytespider Allow: / Sitemap: https://yourwebsite.com/sitemap.xml
Quick Facts
- ✅ Presets: Googlebot, Bingbot, GPTBot, PerplexityBot, ClaudeBot, Google-Extended, OAI-SearchBot, CCBot
- ⚡ Speed: Visual builder — no syntax knowledge required
- 💰 Cost: 100% free — no signup
- 📊 Emits: correct precedence + sitemap declaration
- 🎯 AI-search ready: 2026 crawler landscape covered
- 🔄 Last Updated: June 2026
What Is Robots.txt Builder?
A robots.txt builder is a tool that generates a valid /robots.txt file — the plain-text file at the root of your site that tells crawlers which paths they may access. SEOAcademys' Free Robots.txt Builder provides visual controls for classic crawlers (Googlebot, Bingbot) plus first-class support for 2026 AI crawlers (GPTBot, PerplexityBot, ClaudeBot, Google-Extended, OAI-SearchBot, CCBot), enforces correct directive precedence, includes the Sitemap: line, and outputs a copy-paste ready file.
What Does Robots.txt Builder Check?
Robots.txt Builder is a free SEO tool from SEOAcademys that performs real-time analysis on any live URL. It evaluates 8+ signals using the same methodology trusted by 2.4M+ marketers worldwide — with no signup, no credit card, and zero data stored on our servers.
Visual per
Visual per-crawler allow/disallow toggles
Traditional crawler presets
Traditional crawler presets: Googlebot, Bingbot, DuckDuckBot, Baiduspider, Yandex
AI crawler presets
AI crawler presets: GPTBot, ChatGPT-User, OAI-SearchBot, PerplexityBot, ClaudeBot, Anthropic-AI, Google-Extended, CCBot, Bytespider, FacebookBot, Applebot-Extended
Sitemap
Sitemap: directive (multiple sitemaps supported)
Crawl
Crawl-delay support (for slow-crawl-tolerant bots)
Common patterns
Common patterns: block /admin, /cart, /search, /wp-admin
Wildcard and end
Wildcard and end-of-URL matching ($ / *)
Download as .txt or copy for direct paste
Download as .txt or copy for direct paste
Why Robots.txt Builder Matters for Google Rankings in 2026
In 2026 robots.txt does double duty: it controls traditional search crawlers AND AI training/citation crawlers. The decision of whether to allow GPTBot, ClaudeBot, PerplexityBot, and Google-Extended is now strategic — blocking them protects content but eliminates you from AI search results; allowing them exposes content but drives citation traffic (which now accounts for 15-25% of high-intent research queries). Getting robots.txt wrong is one of the most common catastrophic SEO failures — a single Disallow: / line can deindex an entire site overnight. This tool prevents that.
How to Use Robots.txt Builder
- 1
Step 1: Enter Your URL
Paste any public URL into the field above. Robots.txt Builder accepts both
http://andhttps://and auto-resolves redirects. - 2
Step 2: Run the Analysis
Click Analyze. Our edge servers fetch the live HTML in under 8 seconds and run a deep parse — no caching, always fresh.
- 3
Step 3: Fix the Issues
Review the prioritized fix list, copy the recommended snippets, and re-run Robots.txt Builder after deploying to confirm the score change.
What Robots.txt Builder Checks — Full List
Robots.txt Builder vs SmallSEOTools Robots.txt Generator: Why Free Wins
Paid SEO suites cost $99–$449/month. Robots.txt Builder runs the same on-page checks in real time, completely free.
| Feature | SEOAcademys | SmallSEOTools Robots.txt Generator | Ahrefs |
|---|---|---|---|
| Price | Free forever | $139.95/mo | $129/mo |
| Signup required | No | Yes | Yes |
| Live URL fetching | Yes | Yes | Yes |
| AI crawler signals (GPTBot, ClaudeBot) | Yes | No | Partial |
| Daily limit | Unlimited | 100 reports | 500 credits |
| Data stored | Nothing | Indefinitely | Indefinitely |
| Export CSV / JSON | Yes | Yes (paid tier) | Yes (paid tier) |
Common Robots.txt Generator Issues Found
Disallow: / left from staging accidentally deployed
The single most catastrophic SEO bug possible — deindexes the entire site within days. Always double-check the production robots.txt after every deploy.
Blocking CSS or JavaScript directories
Google needs to render pages to rank them. Blocking /wp-content/ or /_next/static/ prevents Googlebot from rendering CSS/JS — pages get de-ranked. Never block resource directories.
Using robots.txt to hide sensitive content
robots.txt is publicly visible at yoursite.com/robots.txt. Attackers read it to find hidden admin paths. Use authentication and noindex, not robots.txt, to hide sensitive content.
Blocking AI crawlers without a clear strategy
Blocking GPTBot removes you from ChatGPT search results entirely. Only block if you have a licensing strategy (Reddit, StackOverflow model) or a strong content-protection reason.
Missing Sitemap: directive
The Sitemap: line at the bottom of robots.txt tells all crawlers where to find your XML sitemap. Missing it = slower crawl discovery of new pages.
Case-sensitive path mismatch
URL paths in robots.txt are case-sensitive. Disallow: /Admin does not block /admin. Match your actual URL casing exactly.
Frequently Asked Questions About Robots.txt Builder
What is robots.txt?
robots.txt is a plain-text file at the root of your domain (yoursite.com/robots.txt) that tells web crawlers which URLs they may access. It is the oldest and most universally respected standard for crawler control — every major search engine and AI crawler reads it before crawling your site.
Do I need a robots.txt file?
Technically no — if the file is missing, crawlers assume full access. Practically yes — you almost always want to block certain paths (/admin, /cart, /search results) and declare your sitemap. Every professional site should ship a robots.txt from day one.
Should I allow AI crawlers like GPTBot and ClaudeBot?
For most sites: yes. AI search engines now drive 15-25% of high-intent research traffic (Similarweb 2025). Blocking AI crawlers removes you from ChatGPT search results, Perplexity citations, and Claude answers. Only block if you have a specific licensing strategy or premium-content model where AI citation would cannibalize revenue.
What's the difference between GPTBot, ChatGPT-User, and OAI-SearchBot?
GPTBot is OpenAI's training crawler (uses your content to train future GPT models). ChatGPT-User is the on-demand crawler that fetches URLs when a ChatGPT user explicitly requests one. OAI-SearchBot is OpenAI's search index crawler (powers ChatGPT search results). You can allow/block each independently — most sites allow OAI-SearchBot (drives traffic) while some block GPTBot (avoid training use).
Does robots.txt guarantee a page won't appear in Google?
No. robots.txt blocks crawling but not indexing — if other sites link to a blocked page, Google can still index the URL (with no snippet) based on the link. To reliably deindex, use <meta name="robots" content="noindex"> on the page itself, OR X-Robots-Tag: noindex HTTP header. Combine with robots.txt only after indexing has been removed.
Can robots.txt block bad bots and scrapers?
Only if they respect it — and malicious scrapers universally ignore robots.txt. It's a cooperative standard, not enforcement. To actually block bad bots use Cloudflare Bot Fight Mode, Firewall Rules, or WAF rate-limiting — robots.txt is for well-behaved crawlers only.
Where should I place my sitemap in robots.txt?
As a Sitemap: directive at the very bottom of the file, after all User-agent blocks. You can list multiple sitemaps (Sitemap: https://site.com/sitemap.xml on separate lines). Sitemap: is a global directive that applies to all crawlers regardless of User-agent blocks above it.