Overview
JavaScript and CAPTCHA lead Chad's secondary barriers
| Value | |
|---|---|
| WAF | 91.8% |
| Antibot | 18% |
| CAPTCHA | 24.8% |
| JavaScript | 38.3% |
| Rate Limiting | 13.3% |
| TLS | 18.6% |
WAF reaches 91.8% of Chad's 705 surveyed sites. JavaScript (38.3%) leads the secondary stack; CAPTCHA (24.8%) outranks Antibot (18.0%) by 6.8 points, with TLS (18.6%) and Rate Limiting (13.3%) trailing.
Barrier Landscape
JavaScript tops Chad's active secondary defences
| Value | |
|---|---|
| WAF | 91.8% |
| Antibot | 18% |
| CAPTCHA | 24.8% |
| JavaScript | 38.3% |
| Rate Limiting | 13.3% |
| TLS | 18.6% |
| Has robots.txt | 78.6% |
| Blocks AI crawlers | 14% |
WAF is present across 91.8% of Chad's surveyed sites. JavaScript leads secondaries at 38.3%; CAPTCHA (24.8%) and TLS (18.6%) are separated by 6.2 points, with Antibot (18.0%) close behind.
One-barrier sites are Chad's most common configuration
| % of sites | |
|---|---|
| 0 barriers | 5.5% |
| 1 barrier | 34.2% |
| 2 barriers | 30.5% |
| 3 barriers | 16.9% |
| 4 barriers | 6.7% |
| 5 barriers | 5.1% |
| 6 barriers | 1.1% |
34.2% of Chad's sites carry exactly one barrier — the most common count. Two-barrier sites follow at 30.5%. Sites with three or more barriers account for 29.8%; 5.5% present no detectable barrier.
Most Chad sites are Simple to access
| Mean recommended tier | |
|---|---|
| All sites | 1.5 |
A median browser tier of 1 places more than half of Chad's 705 sites in Tier 1. The mean of 1.54 is lifted by the 8.3% of sites at Tier 3 or above.
Nearly six in ten Chad sites are Simple to access
| % of sites | |
|---|---|
| 1 - Simple | 57.4% |
| 2 - Easy | 34.3% |
| 3 - Moderate | 5.4% |
| 4 - Complex | 2% |
| 5 - Advanced | 0.9% |
Tier 1 accounts for 57.4% of Chad's sites; Tier 2 adds 34.3%, bringing the combined share to 91.7%. Tier 3 takes 5.4%, Tier 4 takes 2.0%, and Tier 5 accounts for 0.9%.
robots.txt
AI crawlers top Chad's robots.txt bot categories
| % of sites | |
|---|---|
| AI crawlers | 16.9% |
| SEO / search indexing | 12.1% |
| SEO audit tools | 14.8% |
| Commercial scrapers | 8.9% |
| Social / content scrapers | 7.4% |
| Archive / research crawlers | 6.1% |
| Monitoring / uptime bots | 0.3% |
AI crawlers are named in robots.txt by 16.9% of Chad's 705 sites. SEO audit tools (14.8%) rank second — ahead of SEO / search indexing (12.1%) — an ordering that sets Chad apart from many markets.
Uniform rules are Chad's most common robots.txt posture
| % of sites | |
|---|---|
| Uniform per-agent rules (no path mixing) | 37.7% |
| Path-level mixed rules for same agent | 34.9% |
| Allow-only (no disallow rules) | 3% |
| Mixed AI posture (block some, allow others) | 2.6% |
| Blanket Disallow: / | 2.7% |
21.4% of Chad's sites carry no robots.txt. Of those that do, 37.7% of all sites use uniform per-agent rules and 34.9% use path-level mixed rules — a gap of only 2.8 points.
GPTBot faces the most Disallow rules in Chad's robots.txt
| Disallowed | Allowed (whitelisted) | |
|---|---|---|
| GPTBot | 11.1% | 1.1% |
| CCBot | 9.1% | 0.7% |
| ClaudeBot | 9.2% | 0.6% |
| Google-Extended | 9.8% | 1% |
| Bytespider | 7.4% | 0.3% |
| meta-externalagent | 3.3% | — |
| ChatGPT-User | 6.1% | 2.7% |
| PerplexityBot | 6.7% | 2% |
| Applebot-Extended | 5% | 0.3% |
| OAI-SearchBot | 3.7% | 2.1% |
| anthropic-ai | 4.8% | 0.3% |
Of Chad's 705 sites, GPTBot is named in a Disallow rule by 11.1%. ChatGPT-User holds the highest explicit Allow rate at 2.7%, ahead of OAI-SearchBot at 2.1%.
Multiple Chad sectors all name at least one bot to restrict
| % of sites | |
|---|---|
| Design | 100% |
| Entertainment | 100% |
| Museums | 100% |
| Retail | 100% |
| Adult | 90% |
| Apparel & Fashion | 90% |
| Gambling | 90% |
| General | 90% |
| Mass Media | 90% |
| Newspapers | 90% |
| Online Services | 90% |
| Publishing | 90% |
| Renewable Energy | 90% |
| Telecom | 90% |
| Sporting Goods | 83.3% |
Design, Entertainment, Museums, and Retail each see every sampled site naming at least one bot to restrict in robots.txt. A further ten sectors in this ranking stand at 90% or above.
Museums and Sporting Goods lead Chad's explicit bot Allow rate
| % of sites | |
|---|---|
| Museums | 83.3% |
| Sporting Goods | 83.3% |
| Airlines | 70% |
| Design | 70% |
| Photography | 70% |
| Retail | 70% |
| Travel & Tourism | 70% |
| Agriculture | 66.7% |
| Advertising & Mktg | 60% |
| Architecture | 60% |
| Ecology & Environment | 60% |
| IT Services | 60% |
| Import & Export | 60% |
| Publishing | 60% |
| Renewable Energy | 60% |
Museums and Sporting Goods are tied at 83.3% for the highest named-bot Allow rate among Chad's industries. Airlines and Design follow at 70% each. Some sectors that heavily block bots also lead in explicit Allow rules.
Industry Patterns
Retail is Chad's hardest sector to access programmatically
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Retail | 100% | 10% | 0% | 70% | 10% | 10% | 100% | 50% | Tier 2 |
| Airlines | 90% | 10% | 10% | 50% | 20% | 20% | 80% | 20% | Tier 2 |
| Consumer Electronics | 70% | 40% | 10% | 40% | 10% | 20% | 70% | 20% | Tier 2 |
| Human Resources | 100% | 50% | 20% | 40% | 30% | 10% | 70% | 0% | Tier 2 |
| Sports | 90% | 20% | 20% | 50% | 20% | 10% | 80% | 30% | Tier 2 |
| Hospitality | 100% | 10% | 10% | 30% | 20% | 20% | 70% | 0% | Tier 2 |
| Apparel & Fashion | 100% | 10% | 20% | 40% | 10% | 40% | 90% | 10% | Tier 2 |
| Adult | 100% | 20% | 20% | 60% | 10% | 0% | 90% | 20% | Tier 2 |
| Transport & Logistics | 80% | 40% | 30% | 10% | 10% | 50% | 60% | 10% | Tier 2 |
| Travel & Tourism | 100% | 10% | 10% | 70% | 40% | 20% | 70% | 30% | Tier 2 |
| Automotive | 80% | 10% | 20% | 20% | 10% | 20% | 70% | 0% | Tier 2 |
| Design | 100% | 30% | 30% | 30% | 30% | 40% | 100% | 30% | Tier 2 |
| Education | 100% | 20% | 10% | 40% | 20% | 10% | 80% | 10% | Tier 2 |
| Music | 100% | 20% | 30% | 60% | 40% | 0% | 80% | 30% | Tier 2 |
| Non-Profit | 90% | 0% | 10% | 40% | 10% | 30% | 70% | 10% | Tier 2 |
Retail averages a mean browser tier of 2.50 across Chad's surveyed sites — the highest of any industry. Airlines follows at 2.35, with Consumer Electronics (2.30) next. Human Resources and Sports share the following rank at 2.20.
Healthcare leads Chad's most accessible sectors
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Advertising & Mktg | 100% | 40% | 30% | 10% | 0% | 20% | 90% | 0% | Tier 2 |
| Beauty & Cosmetics | 90% | 20% | 60% | 30% | 30% | 10% | 80% | 10% | Tier 2 |
| Distance Learning | 100% | 30% | 50% | 50% | 30% | 10% | 80% | 30% | Tier 2 |
| Finance | 80% | 10% | 0% | 20% | 20% | 10% | 70% | 30% | Tier 2 |
| Renewable Energy | 70% | 10% | 20% | 20% | 0% | 10% | 100% | 10% | Tier 2 |
| Science | 80% | 30% | 20% | 30% | 20% | 10% | 60% | 0% | Tier 2 |
| Banking | 100% | 10% | 10% | 20% | 0% | 20% | 80% | 10% | Tier 2 |
| Pharmaceuticals | 100% | 20% | 30% | 40% | 20% | 20% | 70% | 0% | Tier 2 |
| Photography | 90% | 40% | 40% | 20% | 30% | 80% | 80% | 30% | Tier 2 |
| Publishing | 90% | 30% | 30% | 50% | 20% | 0% | 90% | 40% | Tier 2 |
| Legal | 90% | 0% | 10% | 20% | 10% | 10% | 60% | 10% | Tier 2 |
| Computer & Video Games | 100% | 40% | 30% | 20% | 20% | 20% | 80% | 10% | Tier 2 |
| Software & Dev | 80% | 40% | 20% | 10% | 20% | 20% | 70% | 10% | Tier 2 |
| Healthcare | 100% | 20% | 10% | 50% | 10% | 20% | 90% | 20% | Tier 2 |
| Mail & Delivery | 71.4% | 42.9% | 42.9% | 14.3% | 14.3% | 28.6% | 42.9% | 14.3% | Tier 1 |
The lowest mean browser tier in Chad's industry ranking is 1.50, shared by Healthcare, Computer & Video Games, and Software & Dev. All three carry WAF rates of 80% or above while averaging well under Tier 2.