| |
| """llms.txt ecosystem audit — phase A: fetch all llms.txt files; phase B: validate links.""" |
| import concurrent.futures as cf |
| import json, os, random, re, ssl, sys, urllib.request, urllib.error |
|
|
| OUT = "/tmp/llmsaudit" |
| UA = "Mozilla/5.0 (compatible; SEMPITE-research/1.0; +https://sempite.com/research/)" |
| CTX = ssl.create_default_context() |
| CTX.check_hostname = False |
| CTX.verify_mode = ssl.CERT_NONE |
|
|
| NOTABLE = { |
| "docs.stripe.com","stripe.com","claude.com","docs.anthropic.com","docs.perplexity.ai", |
| "docs.docker.com","python.langchain.com","ai-sdk.dev","vercel.com","supabase.com", |
| "docs.cloudflare.com","developers.cloudflare.com","zapier.com","docs.zapier.com", |
| "mintlify.com","docs.cursor.com","cursor.com","elevenlabs.io","docs.elevenlabs.io", |
| "resend.com","svelte.dev","nextjs.org","bun.sh","hono.dev","docs.github.com", |
| "shopify.dev","fly.io","turbo.build","expo.dev","docs.expo.dev","pydantic.dev", |
| "modelcontextprotocol.io","openrouter.ai","huggingface.co","docs.x.ai","x.ai", |
| "platform.openai.com","cohere.com","docs.cohere.com","groq.com","console.groq.com", |
| "mistral.ai","docs.mistral.ai","together.ai","docs.together.ai","replicate.com", |
| "fireworks.ai","docs.fireworks.ai","deepgram.com","developers.deepgram.com", |
| "assemblyai.com","www.assemblyai.com","docs.pinecone.io","weaviate.io","qdrant.tech", |
| "trychroma.com","docs.trychroma.com","neon.tech","planetscale.com","railway.app", |
| "docs.railway.app","render.com","netlify.com","docs.netlify.com","astro.build", |
| "tailwindcss.com","daisyui.com","drizzle.team","orm.drizzle.team","prisma.io", |
| "www.prisma.io","trigger.dev","inngest.com","clerk.com","workos.com","auth0.com", |
| "plaid.com","twilio.com","www.twilio.com","sendgrid.com","postmarkapp.com", |
| "linear.app","raycast.com","warp.dev","zed.dev","sourcegraph.com","gitbook.com", |
| "readme.com","algolia.com","meilisearch.com","typesense.org","posthog.com", |
| "june.so","amplitude.com","segment.com","rudderstack.com","langfuse.com", |
| "braintrust.dev","helicone.ai","portkey.ai","litellm.ai","docs.litellm.ai", |
| } |
| SAMPLE_N = 15 |
| NOTABLE_CAP = 400 |
| TIMEOUT = 15 |
|
|
| def fetch(url, method="GET", maxbytes=1_500_000): |
| req = urllib.request.Request(url, headers={"User-Agent": UA, "Accept": "*/*"}, method=method) |
| redirects = 0 |
| try: |
| with urllib.request.urlopen(req, timeout=TIMEOUT, context=CTX) as r: |
| body = r.read(maxbytes) if method == "GET" else b"" |
| final = r.geturl() |
| redirects = 1 if final.rstrip("/") != url.rstrip("/") else 0 |
| return r.status, redirects, final, body |
| except urllib.error.HTTPError as e: |
| return e.code, redirects, url, b"" |
| except Exception: |
| return 0, 0, url, b"" |
|
|
| def check_link(url): |
| code, red, final, _ = fetch(url, "HEAD") |
| if code in (405, 403, 406, 501, 0): |
| code, red, final, _ = fetch(url, "GET", maxbytes=2048) |
| return code, red, final |
|
|
| LINK_RE = re.compile(r'\((https?://[^)\s]+)\)|^(?:[-*]\s*)?(https?://\S+)$', re.M) |
|
|
| def phase_a(src): |
| code, red, final, body = fetch(src) |
| txt = body.decode("utf-8", "replace") |
| is_html = txt.lstrip()[:200].lower().find("<html") >= 0 or txt.lstrip().startswith("<!doctype") |
| links = [] |
| if code == 200 and not is_html: |
| for m in LINK_RE.finditer(txt): |
| u = (m.group(1) or m.group(2) or "").rstrip(".,;:") |
| if u and len(u) < 500: |
| links.append(u) |
| seen, ordered = set(), [] |
| for u in links: |
| if u not in seen: |
| seen.add(u); ordered.append(u) |
| return {"src": src, "status": code, "redirected": red, "final": final, |
| "is_html": is_html, "bytes": len(body), "n_links": len(ordered), "links": ordered} |
|
|
| def main(): |
| urls = [l.strip() for l in open("/tmp/llms-urls-all.txt") if l.strip()] |
| print(f"Phase A: fetching {len(urls)} llms.txt files", flush=True) |
| results = [] |
| with cf.ThreadPoolExecutor(64) as ex: |
| for i, r in enumerate(ex.map(phase_a, urls)): |
| results.append(r) |
| if (i+1) % 200 == 0: print(f" {i+1}/{len(urls)}", flush=True) |
| with open(f"{OUT}/phase_a.jsonl", "w") as f: |
| for r in results: |
| f.write(json.dumps({k: v for k, v in r.items() if k != "links"}) + "\n") |
|
|
| rng = random.Random(20260805) |
| jobs = [] |
| capped_sites = 0 |
| for r in results: |
| if r["status"] != 200 or r["is_html"] or not r["n_links"]: continue |
| host = re.sub(r'^https?://([^/]+).*', r'\1', r["src"]).lower().removeprefix("www.") |
| notable = host in NOTABLE or re.sub(r'^https?://([^/]+).*', r'\1', r["src"]).lower() in NOTABLE |
| pool = r["links"] |
| if notable: |
| if len(pool) > NOTABLE_CAP: capped_sites += 1 |
| chosen = pool[:NOTABLE_CAP] |
| tier = "notable" |
| else: |
| chosen = pool if len(pool) <= SAMPLE_N else rng.sample(pool, SAMPLE_N) |
| tier = "sample" |
| for u in chosen: jobs.append((r["src"], u, tier)) |
| print(f"Phase B: validating {len(jobs)} links ({capped_sites} notable sites capped at {NOTABLE_CAP})", flush=True) |
|
|
| def work(j): |
| site, url, tier = j |
| code, red, final = check_link(url) |
| return f"{site}\t{tier}\t{code}\t{red}\t{url}\t{final}" |
| with open(f"{OUT}/phase_b.tsv", "w") as f: |
| with cf.ThreadPoolExecutor(64) as ex: |
| for i, line in enumerate(ex.map(work, jobs)): |
| f.write(line + "\n") |
| if (i+1) % 2000 == 0: |
| f.flush(); print(f" {i+1}/{len(jobs)}", flush=True) |
| print("DONE", flush=True) |
|
|
| if __name__ == "__main__": |
| main() |
|
|
