{
 "study": "s2",
 "version": "1.1",
 "collected": "2026-09-26",
 "recollected": "2026-09-28",
 "statistics": {
  "sample": {
   "list": "Tranco top 1M, list ID L5PZ4 (downloaded 2026-09-26)",
   "domains_attempted": 10000,
   "domains_with_live_homepage": 5902,
   "crawl_window": [
    "2026-09-26T04:16:26.234430Z",
    "2026-09-26T04:38:00Z"
   ]
  },
  "s2_llms_state": {
   "absent": 4120,
   "valid": 680,
   "soft404_html": 929,
   "redirected_elsewhere": 22,
   "text_no_h1": 124,
   "empty": 27
  },
  "s2_llms_full_state": {
   "absent": 4740,
   "valid": 123,
   "soft404_html": 991,
   "redirected_elsewhere": 26,
   "empty": 22
  },
  "s2_valid_n": 680,
  "s2_valid_pct": 11.5,
  "s2_any_text_n": 804,
  "s2_any_text_pct": 13.6,
  "s2_by_tier": {
   "1-1,000": {
    "live": 534,
    "valid": 81,
    "pct": 15.2
   },
   "1,001-5,000": {
    "live": 2323,
    "valid": 289,
    "pct": 12.4
   },
   "5,001-10,000": {
    "live": 3045,
    "valid": 310,
    "pct": 10.2
   }
  },
  "s2_valid_with_full": {
   "n": 111,
   "pct_of_valid": 16.3
  },
  "s2_features": {
   "median_bytes": 7706.0,
   "median_links": 36.0,
   "pct_with_summary_blockquote": 80.6,
   "pct_with_h2_sections": 95.0,
   "pct_linking_md_files": 14.6,
   "p90_bytes": 54044,
   "max_bytes": 20027081
  },
  "s2_llms_but_blocks_ai": {
   "n": 33,
   "pct_of_valid": 4.9
  },
  "s2_valid_top_examples": [
   "cloudflare.com",
   "github.com",
   "fastly.net",
   "digicert.com",
   "wordpress.org",
   "adobe.com",
   "opera.com",
   "sentry.io",
   "samsung.com",
   "wordpress.com",
   "dropbox.com",
   "unity3d.com",
   "kaspersky.com",
   "gravatar.com",
   "one.one",
   "shopify.com",
   "base.org",
   "ubuntu.com",
   "stripe.com",
   "sourceforge.net",
   "roku.com",
   "hubspot.com",
   "hcaptcha.com",
   "linktr.ee",
   "forter.com"
  ],
  "s2_derived": {
   "soft404_pct_of_live": 15.7,
   "absent_pct_of_live": 69.8,
   "full_valid_pct_of_live": 2.1,
   "soft404_to_valid_ratio": 1.37,
   "any_http200_n": 1782,
   "any_http200_pct_of_live": 30.2,
   "state_pct_of_live": {
    "absent": 69.8,
    "valid": 11.5,
    "soft404_html": 15.7,
    "redirected_elsewhere": 0.4,
    "text_no_h1": 2.1,
    "empty": 0.5
   }
  },
  "s2_v11": {
   "reproduces_version_1_0": true,
   "headline": {
    "valid": {
     "n": 680,
     "of": 5902,
     "pct": 11.5,
     "ci95": [
      10.7,
      12.4
     ]
    },
    "any_http_200": {
     "n": 1782,
     "of": 5902,
     "pct": 30.2,
     "ci95": [
      29.0,
      31.4
     ]
    },
    "html_at_path": {
     "n": 929,
     "of": 5902,
     "pct": 15.7,
     "ci95": [
      14.8,
      16.7
     ]
    },
    "full_valid": {
     "n": 123,
     "of": 5902,
     "pct": 2.1,
     "ci95": [
      1.7,
      2.5
     ]
    },
    "valid_over_all_10000_lower_bound": {
     "n": 680,
     "of": 10000,
     "pct": 6.8,
     "ci95": [
      6.3,
      7.3
     ]
    }
   },
   "by_tier": {
    "1-1,000": {
     "n": 81,
     "of": 534,
     "pct": 15.2,
     "ci95": [
      12.4,
      18.5
     ]
    },
    "1,001-5,000": {
     "n": 289,
     "of": 2323,
     "pct": 12.4,
     "ci95": [
      11.2,
      13.8
     ]
    },
    "5,001-10,000": {
     "n": 310,
     "of": 3045,
     "pct": 10.2,
     "ci95": [
      9.2,
      11.3
     ]
    }
   },
   "top1000_minus_bottom_tier": {
    "diff_pp": 5.0,
    "ci95_pp": [
     2.0,
     8.5
    ]
   },
   "rank_bands_10": [
    {
     "band": "1-1000",
     "n": 81,
     "of": 534,
     "pct": 15.2,
     "ci95": [
      12.4,
      18.5
     ]
    },
    {
     "band": "1001-2000",
     "n": 56,
     "of": 615,
     "pct": 9.1,
     "ci95": [
      7.1,
      11.6
     ]
    },
    {
     "band": "2001-3000",
     "n": 75,
     "of": 566,
     "pct": 13.3,
     "ci95": [
      10.7,
      16.3
     ]
    },
    {
     "band": "3001-4000",
     "n": 82,
     "of": 571,
     "pct": 14.4,
     "ci95": [
      11.7,
      17.5
     ]
    },
    {
     "band": "4001-5000",
     "n": 76,
     "of": 571,
     "pct": 13.3,
     "ci95": [
      10.8,
      16.3
     ]
    },
    {
     "band": "5001-6000",
     "n": 81,
     "of": 602,
     "pct": 13.5,
     "ci95": [
      11.0,
      16.4
     ]
    },
    {
     "band": "6001-7000",
     "n": 66,
     "of": 569,
     "pct": 11.6,
     "ci95": [
      9.2,
      14.5
     ]
    },
    {
     "band": "7001-8000",
     "n": 66,
     "of": 597,
     "pct": 11.1,
     "ci95": [
      8.8,
      13.8
     ]
    },
    {
     "band": "8001-9000",
     "n": 56,
     "of": 617,
     "pct": 9.1,
     "ci95": [
      7.1,
      11.6
     ]
    },
    {
     "band": "9001-10000",
     "n": 41,
     "of": 660,
     "pct": 6.2,
     "ci95": [
      4.6,
      8.3
     ]
    }
   ],
   "rank_trend_10_bands": {
    "z": -4.24,
    "p": 2.3e-05
   },
   "conformance_ladder": {
    "h1": {
     "n": 680,
     "of": 680,
     "pct": 100.0,
     "ci95": [
      99.4,
      100.0
     ]
    },
    "h1_summary": {
     "n": 548,
     "of": 680,
     "pct": 80.6,
     "ci95": [
      77.4,
      83.4
     ]
    },
    "h1_summary_h2_link_sections": {
     "n": 500,
     "of": 680,
     "pct": 73.5,
     "ci95": [
      70.1,
      76.7
     ]
    },
    "all_plus_md_links": {
     "n": 81,
     "of": 680,
     "pct": 11.9,
     "ci95": [
      9.7,
      14.6
     ]
    }
   },
   "refetch": {
    "domains": 5902,
    "window": [
     "2026-09-28T04:25:57.107009Z",
     "2026-09-28T04:31:47.743841Z"
    ],
    "control_path": "/llms-7f3a9c21b8e4d056.txt"
   },
   "control_by_state_26sep": {
    "absent": {
     "not_found_or_error": 4108,
     "html_200": 12
    },
    "empty": {
     "text_200": 22,
     "not_found_or_error": 4,
     "html_200": 1
    },
    "redirected_elsewhere": {
     "text_200": 19,
     "not_found_or_error": 3
    },
    "soft404_html": {
     "html_200": 897,
     "not_found_or_error": 32
    },
    "text_no_h1": {
     "not_found_or_error": 110,
     "text_200": 4,
     "html_200": 10
    },
    "valid": {
     "not_found_or_error": 605,
     "text_200": 6,
     "html_200": 69
    }
   },
   "control_all": {
    "not_found_or_error": {
     "n": 4862,
     "of": 5902,
     "pct": 82.4,
     "ci95": [
      81.4,
      83.3
     ]
    },
    "html_200": {
     "n": 989,
     "of": 5902,
     "pct": 16.8,
     "ci95": [
      15.8,
      17.7
     ]
    },
    "text_200": {
     "n": 51,
     "of": 5902,
     "pct": 0.9,
     "ci95": [
      0.7,
      1.1
     ]
    }
   },
   "html_sites_control_also_200": {
    "n": 897,
    "of": 929,
    "pct": 96.6,
    "ci95": [
     95.2,
     97.5
    ]
   },
   "valid_sites_control": {
    "of": 680,
    "control_not_found": {
     "n": 605,
     "of": 680,
     "pct": 89.0,
     "ci95": [
      86.4,
      91.1
     ]
    },
    "control_text_same_body": 0,
    "control_text_other_body": 6,
    "control_html": 69
   },
   "text_no_h1_control_same_body": {
    "n": 2,
    "of": 124,
    "pct": 1.6,
    "ci95": [
     0.4,
     5.7
    ]
   },
   "test_retest": {
    "agreement": {
     "n": 5854,
     "of": 5902,
     "pct": 99.2,
     "ci95": [
      98.9,
      99.4
     ]
    },
    "kappa": 0.983,
    "valid_valid": {
     "n": 677,
     "of": 680,
     "pct": 99.6,
     "ci95": [
      98.7,
      99.8
     ]
    },
    "valid_26_not_28": {
     "absent": 1,
     "soft404_html": 2
    },
    "new_valid_28": {
     "absent": 10,
     "empty": 1
    },
    "valid_28": {
     "n": 688,
     "of": 5902,
     "pct": 11.7,
     "ci95": [
      10.9,
      12.5
     ]
    },
    "valid_binary_kappa": 0.988,
    "crosstab": {
     "absent": {
      "absent": 4100,
      "valid": 10,
      "soft404_html": 8,
      "text_no_h1": 2
     },
     "empty": {
      "empty": 25,
      "absent": 1,
      "valid": 1
     },
     "redirected_elsewhere": {
      "redirected_elsewhere": 21,
      "soft404_html": 1
     },
     "soft404_html": {
      "soft404_html": 911,
      "absent": 18
     },
     "text_no_h1": {
      "text_no_h1": 120,
      "absent": 2,
      "soft404_html": 2
     },
     "valid": {
      "valid": 677,
      "absent": 1,
      "soft404_html": 2
     }
    }
   },
   "valid_both_days_not_catchall": {
    "n": 677,
    "of": 5902,
    "pct": 11.5,
    "ci95": [
     10.7,
     12.3
    ]
   }
  }
 }
}