{
    "generated_at": "2026-08-19T00:53:29+00:00",
    "source": {
        "list": "Tranco",
        "list_id": "K9L5W",
        "list_date": "2026-08-17",
        "list_url": "https://tranco-list.eu/list/K9L5W",
        "filter": "Every domain ending in .au"
    },
    "coverage": {
        "domains_in_list": 8376,
        "measured": 6421,
        "failed": 1955,
        "failure_reasons": {
            "HTTP error response": 1003,
            "Connection failed or timed out": 602,
            "Did not resolve to a public address": 350
        }
    },
    "protocols": {
        "HTTP/2": 5876,
        "HTTP/1.1": 544,
        "HTTP/1.0": 1
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    "encodings": {
        "brotli": 2826,
        "gzip": 2119,
        "zstd": 952,
        "none": 521,
        "deflate": 3
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    "compression": {
        "uncompressed_domains": 521,
        "median_ratio": 0.164,
        "uncompressed_bytes": 41965547,
        "estimated_saving": 35082154
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    "ttfb": {
        "distribution": {
            "Under 200 ms": 1582,
            "200 to 500 ms": 1765,
            "500 ms to 1 s": 1591,
            "1 to 2 s": 1120,
            "Over 2 s": 363
        },
        "p50": 480,
        "p75": 924,
        "p90": 1588
    },
    "html_size": {
        "distribution": {
            "Under 50 KB": 1093,
            "50 to 150 KB": 1468,
            "150 to 500 KB": 2630,
            "500 KB to 1 MB": 804,
            "Over 1 MB": 426
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        "p50": 207324,
        "p75": 410801,
        "p90": 808024
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    "redirects": {
        "1 redirect": 3189,
        "2 redirects": 300,
        "None": 2817,
        "3 or more": 115
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    "headers": {
        "cache_control": 4678,
        "no_store": 1706,
        "etag": 1804,
        "hsts": 3584,
        "cdn": 4145
    },
    "servers": {
        "cloudflare": 3144,
        "nginx": 781,
        "Apache": 652,
        "(not disclosed)": 650,
        "LiteSpeed": 365,
        "Microsoft-IIS": 154,
        "AmazonS3": 77,
        "CloudFront": 76,
        "Vercel": 76,
        "awselb": 32
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    "cdn_split": {
        "Behind a CDN": {
            "domains": 4145,
            "ttfb_median": 525,
            "compressed": 4010,
            "http2_plus": 4103
        },
        "Direct from origin": {
            "domains": 2276,
            "ttfb_median": 329,
            "compressed": 1890,
            "http2_plus": 1773
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    },
    "by_class": {
        "com.au": {
            "domains": 4797,
            "compressed": 4424,
            "http2_plus": 4406,
            "cdn": 3158,
            "ttfb_median": 470
        },
        "au (direct)": {
            "domains": 510,
            "compressed": 497,
            "http2_plus": 503,
            "cdn": 471,
            "ttfb_median": 1498
        },
        "org.au": {
            "domains": 375,
            "compressed": 336,
            "http2_plus": 334,
            "cdn": 213,
            "ttfb_median": 382
        },
        "gov.au": {
            "domains": 312,
            "compressed": 275,
            "http2_plus": 279,
            "cdn": 105,
            "ttfb_median": 291
        },
        "edu.au": {
            "domains": 206,
            "compressed": 190,
            "http2_plus": 185,
            "cdn": 126,
            "ttfb_median": 344
        },
        "net.au": {
            "domains": 204,
            "compressed": 164,
            "http2_plus": 155,
            "cdn": 66,
            "ttfb_median": 362
        },
        "asn.au": {
            "domains": 13,
            "compressed": 11,
            "http2_plus": 12,
            "cdn": 6,
            "ttfb_median": 308
        },
        "id.au": {
            "domains": 4,
            "compressed": 3,
            "http2_plus": 2,
            "cdn": 0,
            "ttfb_median": 263
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    }
}