Overview
JavaScript leads Isle of Man's secondary barriers
| Value | |
|---|---|
| WAF | 93.8% |
| Antibot | 20.2% |
| CAPTCHA | 25.6% |
| JavaScript | 43.2% |
| Rate Limiting | 13.7% |
| TLS | 17.3% |
WAF adoption is 93.8%, above the global 93.1%. JavaScript (43.2%) is the top secondary barrier, above the global 41.3%. CAPTCHA (25.6%) and rate limiting (13.7%) also exceed their global benchmarks; TLS (17.3%) sits just below.
Barrier Landscape
JavaScript tops the Isle of Man's active secondary defences
| Value | |
|---|---|
| WAF | 93.8% |
| Antibot | 20.2% |
| CAPTCHA | 25.6% |
| JavaScript | 43.2% |
| Rate Limiting | 13.7% |
| TLS | 17.3% |
| Has robots.txt | 82% |
| Blocks AI crawlers | 14.7% |
WAF is present on 93.8% of Isle of Man sites. Among secondary barriers, JavaScript (43.2%) ranks first and CAPTCHA (25.6%) second — both above their respective global averages of 41.3% and 23.1%.
Most Isle of Man sites carry at least two barriers
| % of sites | |
|---|---|
| 0 barriers | 3.8% |
| 1 barrier | 29.3% |
| 2 barriers | 34.4% |
| 3 barriers | 19.7% |
| 4 barriers | 8.1% |
| 5 barriers | 4% |
| 6 barriers | 0.7% |
34.4% of sites carry exactly two barriers — the modal count. Single-barrier sites account for 29.3%; 3.8% have none. 32.5% deploy three or more barriers.
Most Isle of Man sites are Simple to access
| Mean recommended tier | |
|---|---|
| All sites | 1.6 |
The browser-based median tier is 1, meaning over half of sites resolve at Tier 1 without JavaScript rendering. The mean tier is 1.63.
Most Isle of Man sites are Simple or Easy to access
| % of sites | |
|---|---|
| 1 - Simple | 52% |
| 2 - Easy | 35.5% |
| 3 - Moderate | 10.1% |
| 4 - Complex | 1.9% |
| 5 - Advanced | 0.4% |
Tier 1 accounts for 52.0% and Tier 2 for 35.5%, giving a combined 87.5%. Tier 3 holds 10.1%, Tier 4 1.9%, and Tier 5 0.4%.
robots.txt
AI crawlers top the Isle of Man's robots.txt bot categories
| % of sites | |
|---|---|
| AI crawlers | 16.2% |
| SEO / search indexing | 12.4% |
| SEO audit tools | 14.5% |
| Commercial scrapers | 7.2% |
| Social / content scrapers | 5.9% |
| Archive / research crawlers | 4.8% |
| Monitoring / uptime bots | 0.6% |
Across all 979 Isle of Man sites, 16.2% name at least one AI crawler, 14.5% name an SEO audit tool, and 12.4% name an SEO or search-indexing bot. Commercial scrapers appear on 7.2% of sites.
Uniform rules are the Isle of Man's most common robots.txt posture
| % of sites | |
|---|---|
| Uniform per-agent rules (no path mixing) | 45.9% |
| Path-level mixed rules for same agent | 30.7% |
| Allow-only (no disallow rules) | 2.7% |
| Mixed AI posture (block some, allow others) | 3.3% |
| Blanket Disallow: / | 2.5% |
18.0% of sites have no robots.txt. Among those with one, the leading posture is uniform per-agent rules (45.9%), followed by path-level mixed rules (30.7%). Mixed-AI posture applies to 3.3% and blanket Disallow: / to 2.5%.
GPTBot faces the most Disallow rules in Isle of Man robots.txt files
| Disallowed | Allowed (whitelisted) | |
|---|---|---|
| GPTBot | 11.7% | 2.9% |
| CCBot | 8.7% | 1.2% |
| ClaudeBot | 8.9% | 1.6% |
| Google-Extended | 8% | 1.4% |
| Bytespider | 6.9% | 0.6% |
| meta-externalagent | 3.6% | 0.4% |
| ChatGPT-User | 5.9% | 3% |
| PerplexityBot | 6.4% | 2.9% |
| Applebot-Extended | 5.4% | 0.6% |
| OAI-SearchBot | 3.9% | 2.7% |
| anthropic-ai | 5% | 1.1% |
GPTBot is named in a Disallow rule on 11.7% of all Isle of Man sites. ChatGPT-User receives an explicit Allow on 3.0% of sites — the highest allow rate of any AI agent.
Four Isle of Man sectors all name at least one bot
| % of sites | |
|---|---|
| Design | 100% |
| Facilities Services | 100% |
| Graphic Design | 100% |
| Tobacco | 100% |
| Adult | 90% |
| Aerospace & Defence | 90% |
| Agriculture | 90% |
| Apparel & Fashion | 90% |
| Automotive | 90% |
| Beauty & Cosmetics | 90% |
| Computer & Video Games | 90% |
| Construction | 90% |
| Crafts | 90% |
| Entertainment | 90% |
| Foreign Language | 90% |
Design, Facilities Services, Graphic Design, and Tobacco each reach 100%: every site in those sectors names at least one bot to restrict in a Disallow rule.
Isle of Man's Graphic Design sector leads in explicitly allowing crawlers
| % of sites | |
|---|---|
| Graphic Design | 80% |
| Airlines | 70% |
| Construction | 70% |
| Photography | 70% |
| Plastics & Polymers | 70% |
| Publishing | 70% |
| Social & Charitable | 70% |
| Consulting | 66.7% |
| Apparel & Fashion | 60% |
| Facilities Services | 60% |
| Real Estate | 60% |
| Retail | 60% |
| Software & Dev | 60% |
| Sporting Goods | 60% |
| Aerospace & Defence | 50% |
Graphic Design has the highest explicit allow rate at 80%: that share of sites in the sector names at least one bot to allow. Six further sectors reach 70% or 66.7%.
Industry Patterns
Jewellery & Luxury is the Isle of Man's hardest sector to access
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Jewellery & Luxury | 80% | 10% | 0% | 40% | 20% | 40% | 50% | 0% | Tier 3 |
| Beauty & Cosmetics | 80% | 20% | 10% | 50% | 40% | 20% | 90% | 20% | Tier 3 |
| Computer Hardware | 80% | 20% | 0% | 30% | 20% | 30% | 80% | 10% | Tier 3 |
| Hospitality | 90% | 30% | 0% | 50% | 10% | 50% | 70% | 10% | Tier 3 |
| Apparel & Fashion | 90% | 10% | 20% | 40% | 10% | 30% | 90% | 20% | Tier 2 |
| Human Resources | 100% | 70% | 40% | 60% | 50% | 20% | 70% | 0% | Tier 2 |
| Real Estate | 100% | 30% | 30% | 70% | 40% | 10% | 60% | 40% | Tier 2 |
| Retail | 100% | 0% | 0% | 60% | 30% | 20% | 90% | 40% | Tier 2 |
| Transport & Logistics | 60% | 30% | 20% | 30% | 0% | 30% | 80% | 0% | Tier 2 |
| Consumer Electronics | 70% | 30% | 10% | 50% | 10% | 30% | 90% | 0% | Tier 2 |
| Restaurants | 90% | 10% | 10% | 80% | 60% | 10% | 50% | 10% | Tier 2 |
| Sporting Goods | 80% | 0% | 20% | 30% | 20% | 40% | 90% | 10% | Tier 2 |
| TV & Film | 100% | 30% | 50% | 70% | 20% | 20% | 80% | 20% | Tier 2 |
| Food & Beverages | 100% | 30% | 20% | 60% | 30% | 0% | 80% | 30% | Tier 2 |
| Recruitment & Staffing | 90% | 40% | 30% | 40% | 10% | 10% | 80% | 30% | Tier 2 |
Jewellery & Luxury records the highest mean tier at 2.70. Beauty & Cosmetics follows at 2.60, Computer Hardware at 2.50, and Hospitality at 2.40.
Seven Isle of Man sectors share the most accessible floor
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Adult | 100% | 30% | 40% | 70% | 20% | 20% | 90% | 20% | Tier 2 |
| Mail & Delivery | 70% | 10% | 10% | 30% | 0% | 30% | 80% | 0% | Tier 2 |
| Reference | 70% | 30% | 20% | 40% | 10% | 10% | 60% | 30% | Tier 2 |
| Visual Art | 100% | 40% | 50% | 30% | 10% | 10% | 90% | 60% | Tier 2 |
| Crafts | 100% | 20% | 50% | 40% | 10% | 10% | 90% | 30% | Tier 2 |
| Pharmaceuticals | 100% | 50% | 30% | 60% | 30% | 30% | 80% | 0% | Tier 2 |
| Science | 100% | 40% | 20% | 80% | 30% | 20% | 80% | 20% | Tier 2 |
| Public Safety | 100% | 33.3% | 66.7% | 83.3% | 16.7% | 16.7% | 66.7% | 16.7% | Tier 2 |
| Automotive | 100% | 20% | 10% | 40% | 40% | 20% | 90% | 0% | Tier 2 |
| Computers & Electronics | 100% | 10% | 30% | 40% | 0% | 20% | 90% | 0% | Tier 2 |
| Construction | 80% | 10% | 10% | 50% | 0% | 0% | 90% | 20% | Tier 2 |
| Design | 100% | 30% | 40% | 50% | 30% | 40% | 100% | 30% | Tier 2 |
| Education | 100% | 20% | 10% | 30% | 10% | 10% | 80% | 10% | Tier 2 |
| Events | 90% | 20% | 20% | 70% | 20% | 10% | 70% | 0% | Tier 2 |
| Music | 100% | 30% | 30% | 60% | 20% | 20% | 80% | 10% | Tier 2 |
Automotive, Computers & Electronics, Construction, Design, Education, Events, and Music all record a mean tier of 1.80 — the lowest in the bottom-industry group — indicating near-Tier-1 accessibility on average.