Overview
CAPTCHA is notably elevated on Guernsey sites
| Value | |
|---|---|
| WAF | 94.6% |
| Antibot | 22.6% |
| CAPTCHA | 29.3% |
| JavaScript | 42.8% |
| Rate Limiting | 14.5% |
| TLS | 19.6% |
WAF adoption stands at 94.6%, above the global 93.1%. CAPTCHA is deployed at 29.3% of sites, versus a global 23.1%. Antibot (22.6%), JavaScript (42.8%), rate limiting (14.5%), and TLS (19.6%) also sit above their global benchmarks.
Barrier Landscape
JavaScript tops Guernsey's active secondary defences
| Value | |
|---|---|
| WAF | 94.6% |
| Antibot | 22.6% |
| CAPTCHA | 29.3% |
| JavaScript | 42.8% |
| Rate Limiting | 14.5% |
| TLS | 19.6% |
| Has robots.txt | 78.9% |
| Blocks AI crawlers | 13.7% |
WAF adoption is 94.6%. Among secondary barriers, JavaScript leads at 42.8%, with CAPTCHA close behind at 29.3% — well above the global 23.1%. Antibot is third at 22.6%.
Most Guernsey sites carry at least two barriers
| % of sites | |
|---|---|
| 0 barriers | 3.4% |
| 1 barrier | 27% |
| 2 barriers | 34.9% |
| 3 barriers | 19% |
| 4 barriers | 9.4% |
| 5 barriers | 5.9% |
| 6 barriers | 0.5% |
3.4% of Guernsey sites carry no barriers. The modal count is two barriers, at 34.9% of sites. Sites with three or more barriers account for 34.8% combined — among the higher rates in this group.
Most Guernsey sites are Simple to access
| Mean recommended tier | |
|---|---|
| All sites | 1.7 |
The median recommended retrieval tier is 1, indicating that over half of sites are accessible via plain HTTP. The mean tier is 1.66.
Exactly half of Guernsey sites are Simple to access
| % of sites | |
|---|---|
| 1 - Simple | 50.1% |
| 2 - Easy | 37.2% |
| 3 - Moderate | 9.8% |
| 4 - Complex | 2.1% |
| 5 - Advanced | 0.8% |
Tier 1 accounts for 50.1% of sites and Tier 2 for 37.2%, giving a combined Tier 1–2 rate of 87.3%. Tier 3 covers 9.8%, Tier 4 2.1%, and Tier 5 0.8%.
robots.txt
AI crawlers top Guernsey's robots.txt bot categories
| % of sites | |
|---|---|
| AI crawlers | 15.8% |
| SEO / search indexing | 12.3% |
| SEO audit tools | 15.6% |
| Commercial scrapers | 8.3% |
| Social / content scrapers | 6.7% |
| Archive / research crawlers | 4.3% |
| Monitoring / uptime bots | 0.7% |
Across all 853 Guernsey sites, 15.8% name at least one AI crawler and 15.6% name at least one SEO audit tool. SEO / search indexing bots are named by 12.3%.
Uniform rules are Guernsey's most common robots.txt posture
| % of sites | |
|---|---|
| Uniform per-agent rules (no path mixing) | 40.9% |
| Path-level mixed rules for same agent | 33.6% |
| Allow-only (no disallow rules) | 1.8% |
| Mixed AI posture (block some, allow others) | 2.6% |
| Blanket Disallow: / | 2.5% |
21.1% of Guernsey sites have no robots.txt. Among the rest, uniform per-agent rules account for 40.9%, path-level mixed rules for 33.6%, mixed-AI posture for 2.6%, and blanket Disallow: / for 2.5%.
GPTBot faces the most Disallow rules in Guernsey's robots.txt
| Disallowed | Allowed (whitelisted) | |
|---|---|---|
| GPTBot | 11.4% | 2.2% |
| CCBot | 8.8% | 1.1% |
| ClaudeBot | 8.4% | 1.3% |
| Google-Extended | 8.3% | 1.8% |
| Bytespider | 7% | 0.6% |
| meta-externalagent | 2.9% | 0.2% |
| ChatGPT-User | 5.4% | 2.8% |
| PerplexityBot | 6.3% | 2.3% |
| Applebot-Extended | 5.3% | 0.5% |
| OAI-SearchBot | 4.2% | 2.3% |
| anthropic-ai | 5.3% | 1.2% |
GPTBot appears in a Disallow rule on 11.4% of all Guernsey sites. ChatGPT-User is the most explicitly allowed, appearing in an Allow rule on 2.8% of all sites.
Four Guernsey sectors all name at least one bot to restrict
| % of sites | |
|---|---|
| Design | 100% |
| Retail | 100% |
| Social & Charitable | 100% |
| Visual Art | 100% |
| Adult | 90% |
| Agriculture | 90% |
| Beauty & Cosmetics | 90% |
| Computer & Video Games | 90% |
| Crafts | 90% |
| Entertainment | 90% |
| Food & Beverages | 90% |
| General | 90% |
| Mass Media | 90% |
| Newspapers | 90% |
| Online Services | 90% |
Design, Retail, Social & Charitable, and Visual Art all reach 100% — every site in each sector names at least one bot to restrict in a Disallow rule.
Guernsey's Retail sector leads in explicitly allowing crawlers
| % of sites | |
|---|---|
| Retail | 90% |
| Market Research | 75% |
| Airlines | 70% |
| Photography | 70% |
| Publishing | 70% |
| Social & Charitable | 70% |
| Mental Health | 66.7% |
| Accounting & Auditing | 60% |
| Apparel & Fashion | 60% |
| Automotive | 60% |
| Food & Beverages | 60% |
| Museums | 60% |
| Non-Profit | 60% |
| Renewable Energy | 60% |
| Software & Dev | 60% |
Retail is the top-ranked sector, with 90.0% of sites naming at least one bot to allow in an Allow rule. Market Research follows at 75.0% and Airlines, Photography, Publishing, and Social & Charitable at 70.0%.
Industry Patterns
Computer Hardware and Jewellery & Luxury are Guernsey's hardest sectors to access
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Computer Hardware | 90% | 10% | 0% | 40% | 10% | 10% | 70% | 0% | Tier 3 |
| Jewellery & Luxury | 90% | 20% | 10% | 20% | 40% | 50% | 70% | 0% | Tier 3 |
| Automotive | 100% | 10% | 0% | 30% | 70% | 20% | 70% | 10% | Tier 2 |
| Recruitment & Staffing | 80% | 60% | 20% | 20% | 0% | 40% | 70% | 20% | Tier 2 |
| Hospitality | 90% | 20% | 0% | 60% | 20% | 40% | 70% | 10% | Tier 2 |
| Sporting Goods | 70% | 0% | 10% | 20% | 10% | 40% | 60% | 10% | Tier 2 |
| Beauty & Cosmetics | 70% | 10% | 10% | 40% | 30% | 30% | 90% | 10% | Tier 2 |
| Pharmaceuticals | 100% | 10% | 30% | 30% | 0% | 40% | 90% | 0% | Tier 2 |
| Apparel & Fashion | 90% | 20% | 30% | 50% | 20% | 40% | 90% | 10% | Tier 2 |
| Computers & Electronics | 90% | 30% | 30% | 60% | 20% | 20% | 60% | 10% | Tier 2 |
| Human Resources | 100% | 70% | 30% | 30% | 20% | 20% | 80% | 10% | Tier 2 |
| Real Estate | 90% | 20% | 30% | 70% | 40% | 10% | 60% | 10% | Tier 2 |
| Consumer Electronics | 100% | 10% | 10% | 70% | 10% | 30% | 80% | 30% | Tier 2 |
| Retail | 100% | 10% | 10% | 50% | 30% | 30% | 100% | 40% | Tier 2 |
| Transport & Logistics | 70% | 20% | 10% | 10% | 10% | 20% | 70% | 0% | Tier 2 |
Computer Hardware and Jewellery & Luxury share the highest mean recommended tier at 2.90. Automotive (2.50) and Recruitment & Staffing (2.45) form the next cluster.
Advertising & Marketing is Guernsey's most accessible sector to access programmatically
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Adult | 100% | 30% | 40% | 80% | 20% | 10% | 90% | 10% | Tier 2 |
| Construction | 100% | 10% | 20% | 40% | 20% | 0% | 70% | 0% | Tier 2 |
| Reference | 75% | 37.5% | 25% | 25% | 12.5% | 12.5% | 62.5% | 25% | Tier 2 |
| Science | 100% | 30% | 10% | 50% | 30% | 10% | 70% | 10% | Tier 2 |
| Visual Art | 100% | 30% | 50% | 30% | 0% | 20% | 100% | 20% | Tier 2 |
| Gambling | 90% | 40% | 20% | 60% | 50% | 20% | 40% | 0% | Tier 2 |
| Mail & Delivery | 70% | 10% | 20% | 10% | 10% | 30% | 70% | 0% | Tier 2 |
| Airlines | 100% | 20% | 10% | 70% | 20% | 20% | 80% | 30% | Tier 2 |
| Banking | 100% | 20% | 30% | 40% | 10% | 10% | 80% | 0% | Tier 2 |
| Design | 100% | 20% | 30% | 50% | 20% | 30% | 100% | 30% | Tier 2 |
| Education | 100% | 20% | 10% | 30% | 10% | 10% | 70% | 10% | Tier 2 |
| Maritime | 100% | 30% | 0% | 60% | 10% | 10% | 90% | 20% | Tier 2 |
| Telecom | 100% | 0% | 20% | 70% | 0% | 10% | 90% | 20% | Tier 2 |
| Travel & Tourism | 100% | 30% | 10% | 70% | 20% | 10% | 70% | 30% | Tier 2 |
| Advertising & Mktg | 90% | 40% | 50% | 30% | 0% | 20% | 80% | 10% | Tier 2 |
Advertising & Marketing records the lowest mean recommended tier in the bottom-industries list at 1.70, the sole sector at that floor.