Overview

JavaScript is Cambodia's most common secondary barrier
| Value | |
|---|---|
| WAF | 92.4% |
| Antibot | 20.3% |
| CAPTCHA | 22.1% |
| JavaScript | 40.4% |
| Rate Limiting | 13.1% |
| TLS | 18.6% |
WAF covers 92.4% of Cambodia's 1,111 surveyed sites. JavaScript leads secondary barriers at 40.4%, CAPTCHA follows at 22.1%, then TLS at 18.6% — ahead of Antibot at 20.3% and Rate Limiting at 13.1%.
Barrier Landscape

JavaScript tops Cambodia's active secondary defences
| Value | |
|---|---|
| WAF | 92.4% |
| Antibot | 20.3% |
| CAPTCHA | 22.1% |
| JavaScript | 40.4% |
| Rate Limiting | 13.1% |
| TLS | 18.6% |
| Has robots.txt | 79.9% |
| Blocks AI crawlers | 14.3% |
WAF is present on 92.4% of Cambodia's 1,111 sites. JavaScript leads secondary barriers at 40.4%. CAPTCHA at 22.1%, Antibot at 20.3%, and TLS at 18.6% follow in close succession.

Two-barrier stacking is the most common configuration
| % of sites | |
|---|---|
| 0 barriers | 4.5% |
| 1 barrier | 31.3% |
| 2 barriers | 34.5% |
| 3 barriers | 16.8% |
| 4 barriers | 8.6% |
| 5 barriers | 3.9% |
| 6 barriers | 0.4% |
4.5% of Cambodia's 1,111 sites carry no detectable barriers. Two barriers is the modal outcome at 34.5%. Sites with three or more barriers account for 29.7%.

Most Cambodia sites are Easy to access
| Mean recommended tier | |
|---|---|
| All sites | 1.7 |
A browser median of 2 and mean of 1.66 characterise Cambodia's access difficulty. Tier 1 covers 48.4% of sites and Tier 2 a further 39.6%, giving 88.0% at Tiers 1–2.

Nearly nine in ten sites are Simple or Easy to access
| % of sites | |
|---|---|
| 1 - Simple | 48.4% |
| 2 - Easy | 39.6% |
| 3 - Moderate | 9.5% |
| 4 - Complex | 2.1% |
| 5 - Advanced | 0.5% |
Tier 1 covers 48.4% of Cambodia's sites; Tier 2 adds 39.6%. Tier 3 accounts for 9.5%, Tier 4 for 2.1%, and Tier 5 for 0.5%.
robots.txt

AI crawlers are the most-cited bot category in robots.txt
| % of sites | |
|---|---|
| AI crawlers | 15.9% |
| SEO / search indexing | 12.2% |
| SEO audit tools | 12.9% |
| Commercial scrapers | 8.5% |
| Social / content scrapers | 6.2% |
| Archive / research crawlers | 4.1% |
| Monitoring / uptime bots | 0.6% |
AI crawlers are mentioned in 15.9% of Cambodia's 1,111 surveyed sites — the most of any bot category. SEO audit tools follow at 12.9%, then SEO / search indexing at 12.2%. Figures include sites without robots.txt.

Uniform per-agent rules are the most prevalent robots.txt posture
| % of sites | |
|---|---|
| Uniform per-agent rules (no path mixing) | 40.1% |
| Path-level mixed rules for same agent | 34.7% |
| Allow-only (no disallow rules) | 2.2% |
| Mixed AI posture (block some, allow others) | 2.6% |
| Blanket Disallow: / | 2.9% |
20.1% of Cambodia's sites have no robots.txt. Uniform per-agent rules is the most common posture at 40.1% of all sites, followed by path-level mixed rules at 34.7%. Blanket Disallow: / covers 2.9%.

GPTBot is the most blocked AI agent
| Disallowed | Allowed (whitelisted) | |
|---|---|---|
| GPTBot | 11.9% | 2.3% |
| CCBot | 9% | 1.1% |
| ClaudeBot | 8.7% | 1.2% |
| Google-Extended | 8.7% | 1.5% |
| Bytespider | 7.5% | 0.4% |
| meta-externalagent | 3.1% | 0.2% |
| ChatGPT-User | 5.9% | 2.7% |
| PerplexityBot | 6.2% | 2.2% |
| Applebot-Extended | 5.5% | 0.5% |
| OAI-SearchBot | 3.9% | 1.8% |
| anthropic-ai | 5.7% | 1.1% |
Of Cambodia's 1,111 sites, GPTBot is Disallowed by 11.9% and explicitly Allowed by 2.3%. ChatGPT-User records the highest explicit Allow rate at 2.7%. All values include sites without robots.txt.

Eight sectors name bots on every site
| % of sites | |
|---|---|
| Computer & Video Games | 100% |
| Consumer Electronics | 100% |
| Design | 100% |
| Entertainment | 100% |
| Performing Arts | 100% |
| Retail | 100% |
| Telecom | 100% |
| Visual Art | 100% |
| Adult | 90% |
| Agriculture | 90% |
| Biotech | 90% |
| Comics & Animation | 90% |
| General | 90% |
| Insurance | 90% |
| Mass Media | 90% |
Computer & Video Games, Consumer Electronics, Design, Entertainment, Performing Arts, Retail, Telecom, and Visual Art all show 100% named-bot Disallow rates — every site in each sector names at least one bot to restrict in robots.txt.

Airlines and Telecom lead explicit bot Allow rules
| % of sites | |
|---|---|
| Airlines | 80% |
| Telecom | 80% |
| Farms & Ranches | 70% |
| Photography | 70% |
| Public Policy | 70% |
| Publishing | 70% |
| Real Estate | 70% |
| Retail | 70% |
| Travel & Tourism | 70% |
| Market Research | 63.6% |
| Architecture | 60% |
| Automotive | 60% |
| Graphic Design | 60% |
| Hospitality | 60% |
| Non-Profit | 60% |
Airlines and Telecom each record 80% named-bot Allow rates among Cambodia's sectors — the highest in this ranking. Farms & Ranches, Photography, Public Policy, Publishing, Real Estate, Retail, and Travel & Tourism each follow at 70%.
Industry Patterns

Jewellery & Luxury is the hardest sector to access programmatically
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Jewellery & Luxury | 100% | 20% | 10% | 20% | 30% | 60% | 60% | 10% | Tier 3 |
| Real Estate | 100% | 10% | 10% | 40% | 30% | 10% | 70% | 40% | Tier 3 |
| Retail | 100% | 10% | 0% | 70% | 10% | 10% | 100% | 50% | Tier 2 |
| Hospitality | 90% | 30% | 0% | 60% | 20% | 40% | 70% | 20% | Tier 2 |
| Equipment & Supplies | 90% | 20% | 10% | 40% | 20% | 0% | 70% | 20% | Tier 2 |
| Furniture | 100% | 50% | 10% | 40% | 10% | 40% | 40% | 10% | Tier 2 |
| Human Resources | 100% | 80% | 60% | 40% | 50% | 20% | 70% | 10% | Tier 2 |
| Computer Hardware | 90% | 20% | 0% | 30% | 20% | 30% | 80% | 10% | Tier 2 |
| Food & Beverages | 100% | 50% | 20% | 40% | 20% | 0% | 90% | 30% | Tier 2 |
| Apparel & Fashion | 100% | 20% | 30% | 70% | 30% | 20% | 70% | 10% | Tier 2 |
| Beauty & Cosmetics | 100% | 50% | 20% | 40% | 30% | 10% | 80% | 20% | Tier 2 |
| Consumer Electronics | 80% | 10% | 30% | 40% | 10% | 40% | 100% | 20% | Tier 2 |
| Customer Services | 100% | 20% | 40% | 40% | 30% | 30% | 70% | 0% | Tier 2 |
| Sporting Goods | 70% | 10% | 10% | 20% | 30% | 30% | 50% | 0% | Tier 2 |
| Wholesalers | 70% | 10% | 30% | 50% | 30% | 30% | 70% | 10% | Tier 2 |
Jewellery & Luxury records the highest mean recommended tier in Cambodia at 2.90, with a median of 3. Real Estate follows at 2.60. Both sectors are the only ones with a median of 3 in this ranking.

Six sectors share the most accessible floor
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Design | 100% | 20% | 30% | 40% | 20% | 30% | 100% | 30% | Tier 2 |
| Import & Export | 100% | 30% | 30% | 50% | 0% | 30% | 80% | 10% | Tier 2 |
| Insurance | 80% | 60% | 30% | 40% | 10% | 30% | 90% | 0% | Tier 2 |
| Mail & Delivery | 70% | 40% | 10% | 10% | 0% | 20% | 80% | 0% | Tier 2 |
| Recruitment & Staffing | 90% | 60% | 80% | 10% | 10% | 30% | 80% | 30% | Tier 2 |
| Reference | 90% | 60% | 30% | 40% | 20% | 10% | 60% | 30% | Tier 2 |
| Textiles & Nonwovens | 100% | 10% | 20% | 30% | 10% | 30% | 80% | 10% | Tier 2 |
| Automotive | 90% | 10% | 10% | 30% | 20% | 30% | 80% | 20% | Tier 2 |
| Banking | 90% | 20% | 10% | 40% | 0% | 20% | 70% | 0% | Tier 2 |
| Crafts | 100% | 20% | 30% | 50% | 10% | 10% | 80% | 20% | Tier 2 |
| Manufacturing | 80% | 10% | 10% | 40% | 0% | 40% | 80% | 0% | Tier 2 |
| Maritime | 90% | 20% | 0% | 40% | 10% | 30% | 80% | 10% | Tier 2 |
| Medical Devices | 90% | 20% | 30% | 50% | 20% | 10% | 90% | 0% | Tier 2 |
| Restaurants | 90% | 30% | 10% | 60% | 60% | 10% | 70% | 10% | Tier 2 |
| Telecom | 90% | 10% | 20% | 60% | 0% | 20% | 100% | 20% | Tier 2 |
Eight sectors cluster at a mean recommended tier of 1.90 — the lowest in Cambodia's bottom-15 ranking. Design leads this group at 2.00.