Of 61,546 live Vietnamese websites, 2,473 (4.02%) block an AI crawler — 21st of 43 countries. And 94% neither block nor declare, with almost no accidental blocking.
Analysis of 41,818,678 live, content-validated websites worldwide · snapshot 2026-07-13 · by Piperic
Vietnam sits on the open side of the table. Of 61,546 live Vietnamese sites, 4.02% block an AI crawler — 21st of 43 countries — while an overwhelming 94.31% are 'open by silence', among the highest passive-openness rates in the report.
Conscious engagement is very low: just 1.67% of Vietnamese sites have published an AI policy file and llms.txt adoption sits at 1.82%, among the lowest measured. Real estate (5.41%) and hobbies (5.29%) lead a modest sectoral table; the press stays open at 4.88%. The Western debate over AI signalling has barely reached this web.
And Vietnam blocks with exceptional precision: only 1.7% of GPTBot-blockers accidentally lost ChatGPT Search — the lowest accidental-exclusion rate in the entire report. Where Vietnamese sites block, they do so cleanly. The story is exposure without decision.
Share of sites blocking at least one AI crawler — lower = more open. Vietnam ranks #21 of 44 countries analysed.
Neighbours shown for context. Full ranking in the data download.
Every website falls into one of four groups, based on what it blocks and what it declares:
2,235 Vietnam websites block GPTBot to keep their content out of AI training. But 39 of them — 1.7% — ALSO block OAI-SearchBot, most likely by accident. Those sites have removed themselves from ChatGPT Search results entirely: protected from training, but invisible where their customers now search.
GPTBot (training) and OAI-SearchBot (ChatGPT Search) are independent robots.txt tokens — blocking one does not block the other.
Share of Vietnam sites blocking each crawler in robots.txt.
Bytespider is ByteDance's (TikTok) crawler — it ignores robots.txt more often than the majors, yet it is among the most-blocked.
AI-blocking and llms.txt adoption across Vietnam's biggest website categories.
| Sector | Sites | Blocks AI | llms.txt |
|---|---|---|---|
| 📰 News & media | 410 | 4.88% | 4.63% |
| business and finance | 14,062 | 3.4% | 1.57% |
| technology and computing | 8,869 | 3.46% | 1.38% |
| home and garden | 8,003 | 4.74% | 1.67% |
| style and fashion | 3,285 | 4.14% | 3.01% |
| automotive | 2,667 | 3.52% | 1.72% |
| education | 2,647 | 5.25% | 2.04% |
| real estate | 2,402 | 5.41% | 2.0% |
| shopping | 2,273 | 3.92% | 1.23% |
| travel | 1,939 | 3.35% | 1.55% |
| medical health | 1,859 | 3.98% | 1.61% |
| food and drink | 1,638 | 2.99% | 2.56% |
Vietnam news sites block AI 1.2× more often than the national average (4.88% vs 4.02%) — publishers are the most defensive segment of the web.
16,634 Vietnam online shops are open to AI crawlers (95.6% of 17,398). Their product content can already be read, compared and recommended by AI assistants — whether they know it or not.
Share of sites blocking at least one AI bot, by platform:
This is the baseline edition (2026-07-13). Piperic re-measures continuously; the next edition will show how fast Vietnam's web is closing — or opening.
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How to cite: “According to Piperic's AI Access Report (2026-07-13), based on 61,546 live Vietnam websites…” — link to this page.
Download the country dataset (JSON) Global rankings dataset
Sample: 61,546 live, content-validated websites (Vietnam, ccTLD-based assignment), out of 41,818,678 live domains analysed worldwide. “Live” = HTTP 200 and not parked. “Blocks AI” = the site's robots.txt disallows at least one of 14 known AI crawlers. llms.txt/ai.txt = the file exists at the site root. Snapshot: 2026-07-13 (frozen — numbers do not move with the live crawl). Full-web note: these figures cover the ENTIRE live web including the long tail; industry headlines like “25% of top sites block GPTBot” measure only large publishers — both are true, they measure different things. Country assignment via ccTLD under-counts .com/.org sites; treat US figures as indicative.
Press contact: press@piperic.com · Data: Piperic Business Intelligence
Every number on this page is reproducible from the public dataset above.