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data/analytics-tracking-load.csv

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+metric,value
+reachable_domains,847491
+avg_tech_count_per_reachable_site,7.81
+zero_analytics_detected_count,477615
+zero_analytics_detected_pct_of_reachable,56.4
+google_analytics_count,215797
+google_analytics_pct_of_reachable,25.5
+meta_pixel_count,70646
+meta_pixel_pct_of_reachable,8.3
+privacy_analytics_matomo_count,10920
+privacy_analytics_plausible_count,1991
+privacy_analytics_posthog_count,2018
+privacy_analytics_fathom_count,836
+privacy_analytics_combined_count,15765
+privacy_analytics_combined_pct_of_reachable,1.86

data/captcha-crosscheck.csv

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+metric,value
+captcha_sites_count,142859
+captcha_sites_pct_of_reachable,16.9
+captcha_technologies_checked,reCAPTCHA|hCaptcha|Cloudflare Turnstile|Arkose Labs
+antibot_index_crosscheck_note,"See METHODOLOGY.md - independent cross-check against the separately-run Anti-Bot Adoption Index, not folded into this dataset's own totals"

data/category-prevalence.csv

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+name,count,pct_of_total_domains
+SSL/TLS,747212,74.7
+DNS provider,559704,56.0
+CDN,527853,52.8
+JavaScript library,383462,38.3
+Analytics,370521,37.1
+Web server,344247,34.4
+Tag manager,326369,32.6
+Font,308752,30.9
+UI framework,259717,26.0
+CMS,242607,24.3
+Security,211821,21.2
+Blog,166985,16.7
+Advertising,155055,15.5
+Email provider,134794,13.5
+Programming language,130926,13.1
+Web framework,122890,12.3
+Hosting,119186,11.9
+Social,116187,11.6
+JavaScript framework,93433,9.3
+SEO,79229,7.9
+Consent management,77811,7.8
+Ecommerce,77754,7.8
+Live chat,48474,4.8
+Marketing automation,45635,4.6
+Widgets,42010,4.2
+Video,41054,4.1
+Website builder,28161,2.8
+Build tool,25427,2.5
+Maps,24251,2.4
+Performance,19445,1.9
+Reviews,18365,1.8
+A/B testing,14224,1.4
+Payment,12312,1.2
+Performance monitoring,10237,1.0
+API gateway,9829,1.0
+Monitoring,8983,0.9
+Authentication,8366,0.8
+Backend as a Service,7541,0.8
+Image optimization,7171,0.7
+Static site generator,6679,0.7

data/cdn-vendors.csv

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+name,count,pct_of_cdn_category
+Cloudflare edge/CDN,353903,67.0
+Amazon CloudFront,42719,8.1
+cdnjs,26437,5.0
+Google Hosted Libraries,22520,4.3
+jsDelivr,14902,2.8
+Fastly,13961,2.6
+Alibaba Cloud CDN,11591,2.2
+Akamai edge/CDN,9878,1.9
+Hostinger,8139,1.5
+Vercel,7065,1.3
+Azure Front Door,4873,0.9
+Varnish,4273,0.8
+Contabo Object Storage,3712,0.7
+Google Cloud,3477,0.7
+unpkg,3121,0.6
+Amazon Web Services,2596,0.5
+Netlify,1893,0.4
+Plesk,1751,0.3
+Tencent EdgeOne,1659,0.3
+Bunny CDN,1373,0.3

data/cms-platforms.csv

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+name,count,pct_of_cms_category
+WordPress,157758,65.0
+Drupal,15307,6.3
+Webflow,7815,3.2
+Adobe Experience Manager,7205,3.0
+Bitrix,4871,2.0
+TYPO3,4188,1.7
+The Events Calendar,3997,1.6
+HubSpot CMS,3894,1.6
+Joomla,3546,1.5
+PrestaShop,3540,1.5
+Blogger,2982,1.2
+Contentful,2447,1.0
+Sitecore,2370,1.0
+Wix,1815,0.7
+Tilda,1792,0.7
+Sanity,1654,0.7
+Squarespace,1421,0.6
+MediaWiki,1238,0.5
+Makeswift,1089,0.4
+DataLife Engine,902,0.4

data/cn-visibility-gap.csv

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+tld_group,total_domains,reachable,reachable_pct,avg_tech_count_reachable,zero_tech_detected_reachable,zero_tech_detected_pct_of_reachable
+cn,9873,6914,70.0,3.56,352,5.09
+non-cn (rest of universe),990127,840577,84.9,7.84,4562,0.54

data/dns-providers.csv

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+name,count,pct_of_dns_provider_category
+Cloudflare,336596,60.1
+Amazon Route 53,72236,12.9
+GoDaddy,37525,6.7
+Google Cloud DNS,11088,2.0
+Namecheap,8678,1.6
+Akamai Edge DNS,7676,1.4
+Alibaba Cloud DNS,5169,0.9

data/ecommerce-platforms.csv

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+name,count,pct_of_ecommerce_category
+Shopify,29203,37.6
+WooCommerce,25936,33.4
+Magento,6426,8.3
+PrestaShop,3524,4.5
+OpenCart,2031,2.6
+Salesforce Commerce Cloud,1302,1.7
+BigCommerce,1173,1.5
+GoKwik,960,1.2
+VTEX,827,1.1
+Recharge,815,1.0
+Global-e,671,0.9
+Tiendanube (Nuvemshop),655,0.8
+Luigi's Box,598,0.8
+Odoo,464,0.6
+Pickrr,434,0.6
+ShopLine,238,0.3
+nopCommerce,218,0.3
+MakeShop,194,0.2
+Shopflo,194,0.2
+Future Shop,178,0.2

data/rank-band-stack-inversion.csv

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+rank_band,n_reachable,bot_management_pct,react_frameworks_pct,wordpress_pct,cloudflare_cdn_pct,avg_tech_count
+"Top 1,000",763,26.3,16.4,10.6,20.8,6.91
+1K-10K,7397,21.0,14.1,12.4,32.8,7.49
+10K-100K,75185,15.6,11.1,17.0,38.0,7.95
+100K-1M,764146,9.8,6.0,19.8,42.2,7.8

data/sample-schema.md

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+# `sample-domains-10k.csv` — schema and sampling method
+
+## Sampling method
+
+Stratified systematic sample by Tranco rank, drawn from `run_id=top1m-2026-08-25-full-v2`
+(2026-08-25). Every row in the Top-1,000 band is included; the other three bands are drawn at a
+fixed rank-stride so the sample stays usable for reproducing the rank-band chart without needing
+the full 1,000,000-row dataset — a plain top-10,000-by-rank draw would put roughly 0% of its
+rows past rank 10,000, which is 99.9% of the actual universe.
+
+| Band | Rank range | Rows in sample | Method |
+| --- | --- | --- | --- |
+| Top 1,000 | 1–1,000 | 1,000 | All domains in range (both reachable and unreachable) |
+| 1K–10K | 1,001–10,000 | 2,250 | Every domain where `rank % 4 == 0` |
+| 10K–100K | 10,001–100,000 | 3,000 | Every domain where `rank % 30 == 0` |
+| 100K–1M | 100,001–1,000,000 | 3,600 | 40 equal-width rank slices across the range; first 90 domains by rank in each slice |
+| **Total** | | **9,850** | |
+
+Both reachable and unreachable domains are included in every band, at their natural rate (~16.8%
+unreachable in this sample vs. 15.3% in the full census) — this is deliberate: it demonstrates
+the `reachable=false` semantics described in `METHODOLOGY.md` directly in the sample data itself,
+rather than only asserting it in prose.
+
+## Fields included
+
+| Column | Meaning |
+| --- | --- |
+| `domain` | The domain fingerprinted |
+| `tld` | Top-level domain |
+| `rank` | Tranco rank at scan time |
+| `reachable` | Whether the homepage fetch succeeded — see `METHODOLOGY.md` |
+| `status` | HTTP status code (empty if the fetch failed before a status was returned) |
+| `scheme` | `http` or `https` |
+| `final_url` | The URL that produced the adopted body, after redirect/`www.` fallback resolution |
+| `technology_names` | Pipe-separated (`\|`) list of every detected technology name |
+| `categories` | Pipe-separated list of every detected technology's category |
+| `tech_count` | Count of detected technologies |
+| `cms`, `ecommerce`, `cdn`, `web_server`, `server_language` | Single-value rollup fields (primary detected vendor in that category, if any) |
+| `analytics` | Pipe-separated list of detected analytics technologies |
+| `has_captcha` | Whether a CAPTCHA technology was detected |
+| `render_tier` | `http` for every row in this release (no browser-render pass was run) |
+| `seed_source` | `tranco` for every row (the `internal-harvest` corpus is out of scope) |
+| `detector_version`, `run_id`, `run_date`, `probed_at` | Provenance / reproducibility |
+
+## Fields deliberately NOT included, and why
+
+| Field (on the source record) | Why excluded |
+| --- | --- |
+| `technologies[]` (nested: per-technology `confidence`, `version`, `evidence`) | The flattened `technology_names`/`categories`/`tech_count` columns already answer "what stack does this site run." The nested detail — confidence tier, detected version string, and the literal evidence snippet — is queryable-API-tier granularity, not aggregate-release granularity. |
+| `failure_reason`, `probe_error`, `block_matched` | Scan-quality diagnostics, not tech-stack content. `block_matched` specifically lists literal block/challenge marker strings — out of scope for a technology-stack release. |
+| `is_infrastructure` | A best-effort heuristic the source system's own documentation says cannot be trusted on a false negative. Publishing it as a column risks it being read as verified fact. |
+| `secondary_pages[]`, `secondary_only_technology_names` | Would expose specific internal page URLs (e.g. `/careers`, `/login`) crawled per domain — crawl-target detail, not stack-composition detail. |
+| `source_url`, `method_version`, `schema_version` | Internal pipeline plumbing with no reader-facing value; current values are stated once in `METHODOLOGY.md` rather than repeated per row. |
+| `category` (the seed-time field, distinct from `categories`) | Usually empty; a leftover seed-stage field, not detector output. |
+
+## Not included in this release at all
+
+The full 1,000,000-row dataset is not published in any form — this sample is capped at ~1% of
+the census. For the complete, continuously-rescanned dataset, query the
+[live API](https://crawlora.net/datasets/techstack).

data/ssl-issuers.csv

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+name,count,pct_of_ssl_tls_category
+Let's Encrypt,335725,44.9
+Google Trust Services,277779,37.2
+Amazon (ACM),46687,6.2
+DigiCert,46613,6.2
+Sectigo,33156,4.4

data/summary.json

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+{
+  "run_id": "top1m-2026-08-25-full-v2",
+  "snapshot_date": "2026-08-25",
+  "detector_version": "2026.10.47",
+  "total_domains": 1000000,
+  "reachable": 847491,
+  "reachable_pct": 84.7,
+  "unreachable": 152509,
+  "seed_source": "tranco",
+  "render_tier": "http",
+  "universe": "Tranco top-1,000,000 domain list",
+  "free_ca_combined_count": 613504,
+  "free_ca_combined_pct_of_reachable": 72.4
+}

data/tld-distribution.csv

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+tld,count,pct_of_total_domains
+com,424270,42.43
+net,49005,4.9
+org,37915,3.79
+ru,37579,3.76
+uk,30892,3.09
+de,28806,2.88
+br,17544,1.75
+jp,16495,1.65
+nl,13776,1.38
+in,11917,1.19
+fr,11657,1.17
+io,10225,1.02
+it,9908,0.99
+cn,9873,0.99
+ca,8927,0.89
+xyz,8764,0.88
+pl,8482,0.85
+top,7831,0.78
+us,7830,0.78
+au,7655,0.77
+co,7226,0.72
+es,5561,0.56
+shop,5378,0.54
+eu,5153,0.52
+id,5065,0.51
+info,5043,0.5
+ua,4841,0.48
+cz,4700,0.47
+online,4668,0.47
+kr,4553,0.46
+cc,4387,0.44
+site,3802,0.38
+se,3702,0.37
+app,3672,0.37
+ro,3616,0.36
+casino,3520,0.35
+ch,3485,0.35
+mx,3461,0.35
+tr,3332,0.33
+ai,3319,0.33
+"other (long tail, <3,319 each)",152165,15.2

data/web-servers.csv

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+name,count,pct_of_web_server_category
+Nginx,156024,45.3
+Apache,102009,29.6
+LiteSpeed,44415,12.9
+Microsoft IIS,21000,6.1
+OpenResty,10404,3.0
+Envoy,2707,0.8
+Tengine,2195,0.6
+Caddy,1469,0.4
+Kestrel,889,0.3
+Cowboy,573,0.2
+Gunicorn,324,0.1
+BFE,14,0.0
+Traefik,1,0.0