Overview
JavaScript leads Biotech's secondary barrier stack above the norm
| Value | |
|---|---|
| WAF | 89% |
| Antibot | 13% |
| CAPTCHA | 19% |
| JavaScript | 39% |
| Rate Limiting | 17% |
| TLS | 13% |
WAF at 89% is the dominant barrier. JavaScript (39%) leads secondary coverage. The remaining barriers sit materially lower, giving Biotech a narrow but defined secondary layer.
Barrier Landscape
WAF leads Biotech at 89% — JavaScript is the main secondary layer
| Value | |
|---|---|
| WAF | 89% |
| Antibot | 13% |
| CAPTCHA | 19% |
| JavaScript | 39% |
| Rate Limiting | 17% |
| TLS | 13% |
| Has robots.txt | 76% |
| Blocks AI crawlers | 14% |
WAF dominates at 89%. JavaScript (39%) leads active secondary barriers, followed by CAPTCHA (19%). The remaining three barriers all sit at or below 17% — a concentrated rather than broadly stacked profile.
Biotech's barrier counts are spread — no single configuration dominates
| % of sites | |
|---|---|
| 0 barriers | 6% |
| 1 barrier | 38% |
| 2 barriers | 30% |
| 3 barriers | 17% |
| 4 barriers | 4% |
| 5 barriers | 5% |
| 6 barriers | 0% |
Barrier counts vary widely across Biotech sites. Single-barrier configurations are the modal count at 38%, but the distribution is broad. 26% of sites carry three or more.
Simple is the dominant access tier across Biotech
| Mean recommended tier | |
|---|---|
| All sites | 1.53 |
A mean recommended tier of 1.53 and a median of Simple place Biotech toward the easier end of the sectors surveyed. 57% of sites are Simple to access; 8% require Moderate or above.
Simple is the dominant tier in Biotech, but Easy accounts for a significant share
| % of sites | |
|---|---|
| 1 - Simple | 57% |
| 2 - Easy | 35% |
| 3 - Moderate | 6% |
| 4 - Complex | 2% |
| 5 - Advanced | 0% |
Simple (57%) is the most common tier. Simple and Easy together account for 92% of sites, while 6% land at Moderate and 2% at Complex or Advanced.
robots.txt
Around three-quarters of Biotech sites publish a robots.txt
| % of sites | |
|---|---|
| Publish a valid robots.txt | 76% |
76% of Biotech sites have a valid robots.txt. The remaining 24% leave crawl policy entirely undefined — a meaningful gap for a sector of this scale.
Biotech sites name a handful of agents in robots.txt — few commit to comprehensive policies
| % of sites | |
|---|---|
| 0 | 29% |
| 1 | 40% |
| 2–4 | 10% |
| 5–9 | 8% |
| 10–15 | 4% |
| 16+ | 9% |
The mean of 4.4 named agents reflects limited bot-policy investment in Biotech. 29% of sites name no agents; 40% name exactly one. Only 9% maintain a list of 16 or more named bots.
AI crawlers draw the most robots.txt attention in Biotech
| % of sites | |
|---|---|
| AI crawlers | 17% |
| SEO / search indexing | 11% |
| SEO audit tools | 10% |
| Commercial scrapers | 3% |
| Social / content scrapers | 3% |
| Archive / research crawlers | 0% |
| Monitoring / uptime bots | 0% |
AI crawlers are named in 17% of Biotech robots.txt files, followed by SEO / search indexing at 11%. All figures are percentages of all 100 sites including those with no robots.txt.
Uniform per-agent rules dominate Biotech robots.txt files
| % of sites | |
|---|---|
| Uniform per-agent rules | 41% |
| Path-level mixed rules | 27% |
| Allow-only (no Disallow rules) | 7% |
| Mixed AI posture | 1% |
| Blanket Disallow: / | 1% |
Uniform per-agent rules lead at 41%, with path-level mixed rules at 27%. Mixed AI posture (1%) and blanket Disallow (1%) are minimal.
AI crawlers are among the most-targeted agents in Biotech robots.txt
| Disallowed | Allowed (whitelisted) | |
|---|---|---|
| * | 60% | 33% |
| GPTBot | 11% | 2% |
| Amazonbot | 9% | 1% |
| Baiduspider | 6% | 3% |
| Googlebot | 5% | 4% |
| Google-Extended | 7% | 2% |
| ChatGPT-User | 6% | 2% |
| CCBot | 7% | 1% |
| ClaudeBot | 7% | 1% |
| Applebot-Extended | 6% | 1% |
| Bytespider | 6% | — |
| meta-externalagent | 6% | — |
| Bingbot | 2% | 3% |
| PerplexityBot | 4% | 1% |
| Adsbot-Google | 2% | 2% |
| Sogou spider | 2% | 2% |
| Sogou+spider | 2% | 2% |
| Sosospider | 2% | 2% |
| YandexBot | 2% | 2% |
| YoudaoBot | 2% | 2% |
| YouBot | 3% | 1% |
| anthropic-ai | 4% | — |
| MJ12bot | 4% | — |
| AhrefsBot | 4% | — |
| BLEXBot | 4% | — |
Values are percentages of all 100 Biotech sites surveyed. The wildcard (*) leads at 60% Disallow. Among named agents, GPTBot, Google-Extended lead the Disallow list — reflecting direct targeting of AI training and indexing bots.
Industry Cohort
Biotech is the most accessible sub-category in the Technology cohort
| WAF | Antibot | CAPTCHA | JavaScript | Rate Limit | TLS | robots.txt | Blocks AI | Tier | |
|---|---|---|---|---|---|---|---|---|---|
| Biotech | 89% | 13% | 19% | 39% | 17% | 13% | 76% | 14% | Tier 1 |
| Computer Software | 95% | 17% | 19% | 30% | 18% | 13% | 83% | 14% | Tier 2 |
| Information Technology | 94% | 13% | 15% | 36% | 21% | 14% | 68% | 7% | Tier 2 |
| Market Research | 94% | 16% | 22% | 44% | 25% | 14% | 71% | 0% | Tier 1 |
| Nanotechnology | 95% | 8% | 33% | 31% | 10% | 9% | 79% | 6% | Tier 1 |
| Online Services | 93% | 9% | 16% | 50% | 19% | 12% | 86% | 36% | Tier 2 |
| Security Products & Services | 91% | 19% | 26% | 40% | 15% | 12% | 73% | 4% | Tier 1 |
A median tier of Simple and mean of 1.51 make Biotech the easiest to access programmatically within Technology. WAF (89%) and AI blocking (14%) are below cohort peers.