Publish shard CC-MAIN-2026-08/00116
Browse files- README.md +13 -13
- data/CC-MAIN-2026-08/00116.parquet +3 -0
- stats.csv +4 -1
README.md
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Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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The dataset currently includes crawl **CC-MAIN-2026-08** with **2,
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Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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### Compression Ratios
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Numbers below are actual measurements summed across all
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| Stage |
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|---|---|---|---|
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| Raw WARC (.warc.gz, downloaded) | ~
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| HTML extracted (uncompressed) |
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| Packed markdown WARC (.md.warc.gz) | ~5.
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| Final Parquet (Zstd level 19) | 3.
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The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts
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End to end: ~
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### Processing Times
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Pipeline timings across
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```
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Download (raw WARC) ████████████████████████ total 4h
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Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 7s
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Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total
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Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h
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```
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### Dataset Charts
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Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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The dataset currently includes crawl **CC-MAIN-2026-08** with **2,604,716 documents across 133 shards**. We plan to add more snapshots over time.
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Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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### Compression Ratios
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Numbers below are actual measurements summed across all 133 files of CC-MAIN-2026-08 (2,604,716 pages total), projected to the full crawl of 100,000 WARC files.
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| Stage | 133 files (measured) | 100,000 files (projected) | Reduction |
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|---|---|---|---|
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| Raw WARC (.warc.gz, downloaded) | ~107.8 GB | ~83 TB | — |
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| HTML extracted (uncompressed) | 323.0 GB | ~295 TB | — |
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| Packed markdown WARC (.md.warc.gz) | ~5.4 GB | ~3.7 TB | **-98.3%** vs HTML |
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| Final Parquet (Zstd level 19) | 3.7 GB | ~2.9 TB | **-31.9%** vs packed WARC |
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The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 323.0 GB of uncompressed HTML down to 11.5 GB of markdown — a **98.3% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.0%.
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End to end: ~107.8 GB of raw gzipped WARCs becomes **3.7 GB of Parquet** — a **96.6% total reduction** — containing 2,604,716 clean markdown documents.
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### Processing Times
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Pipeline timings across 133 shards of CC-MAIN-2026-08:
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```
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Download (raw WARC) ████████████████████████ total 4h 33m 47s avg 2m 3s
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Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 7s
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Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 54m 50s avg 24s
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Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h 32m 20s avg 41s
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```
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### Dataset Charts
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data/CC-MAIN-2026-08/00116.parquet
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version https://git-lfs.github.com/spec/v1
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oid sha256:b2e11df54793b45357db5453d8767470475a93665dde98140b5f7d2acf70bf6b
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size 30202354
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stats.csv
CHANGED
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@@ -61,7 +61,8 @@ CC-MAIN-2026-08,111,19477,2631100726,91693229,29275356,2026-03-13T07:26:13Z,107,
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CC-MAIN-2026-08,112,19303,2509547426,90712416,29155400,2026-03-13T07:29:14Z,119,0,27,33
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CC-MAIN-2026-08,113,19468,2542994320,95581406,30306018,2026-03-13T07:33:54Z,123,0,21,135
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CC-MAIN-2026-08,114,19566,2594000707,94155018,31079211,2026-03-13T07:39:16Z,183,0,27,109
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CC-MAIN-2026-08,115,19409,2567533083,97298312,30983238,2026-03-13T07:42:
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CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:42:12Z,277,0,23,136
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CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
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CC-MAIN-2026-08,253,19312,2557230855,96017199,30399966,2026-03-13T06:51:42Z,130,0,23,117
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CC-MAIN-2026-08,263,19704,2599536323,94011169,29652032,2026-03-13T07:32:21Z,124,0,35,83
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CC-MAIN-2026-08,264,19509,2596140017,96135571,30432948,2026-03-13T07:35:25Z,85,0,22,75
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CC-MAIN-2026-08,265,19163,2575701286,97203181,30476269,2026-03-13T07:39:20Z,138,0,23,72
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CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:41:08Z,218,0,47,107
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CC-MAIN-2026-08,402,19446,2552785517,96654791,30588984,2026-03-13T06:43:58Z,98,0,26,44
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CC-MAIN-2026-08,403,19320,2579048144,91406292,29375992,2026-03-13T06:49:29Z,198,0,33,98
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CC-MAIN-2026-08,715,19432,2597827153,95508059,30144173,2026-03-13T07:39:08Z,165,0,29,94
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CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
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CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
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CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80
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CC-MAIN-2026-08,112,19303,2509547426,90712416,29155400,2026-03-13T07:29:14Z,119,0,27,33
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CC-MAIN-2026-08,113,19468,2542994320,95581406,30306018,2026-03-13T07:33:54Z,123,0,21,135
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CC-MAIN-2026-08,114,19566,2594000707,94155018,31079211,2026-03-13T07:39:16Z,183,0,27,109
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CC-MAIN-2026-08,115,19409,2567533083,97298312,30983238,2026-03-13T07:42:42Z,128,0,47,29
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CC-MAIN-2026-08,116,19243,2529547260,94572631,30202354,2026-03-13T07:44:16Z,74,0,19,0
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CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:42:12Z,277,0,23,136
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CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
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CC-MAIN-2026-08,253,19312,2557230855,96017199,30399966,2026-03-13T06:51:42Z,130,0,23,117
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CC-MAIN-2026-08,263,19704,2599536323,94011169,29652032,2026-03-13T07:32:21Z,124,0,35,83
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CC-MAIN-2026-08,264,19509,2596140017,96135571,30432948,2026-03-13T07:35:25Z,85,0,22,75
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CC-MAIN-2026-08,265,19163,2575701286,97203181,30476269,2026-03-13T07:39:20Z,138,0,23,72
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CC-MAIN-2026-08,266,19542,2562231435,92724556,28951823,2026-03-13T07:42:45Z,183,0,21,0
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CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:41:08Z,218,0,47,107
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CC-MAIN-2026-08,402,19446,2552785517,96654791,30588984,2026-03-13T06:43:58Z,98,0,26,44
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CC-MAIN-2026-08,403,19320,2579048144,91406292,29375992,2026-03-13T06:49:29Z,198,0,33,98
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CC-MAIN-2026-08,713,19481,2607510201,94146081,29995656,2026-03-13T07:30:14Z,111,0,26,48
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CC-MAIN-2026-08,714,19423,2596376760,95980683,30740910,2026-03-13T07:34:18Z,181,0,22,38
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CC-MAIN-2026-08,715,19432,2597827153,95508059,30144173,2026-03-13T07:39:08Z,165,0,29,94
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CC-MAIN-2026-08,716,19676,2611420776,94959649,30429233,2026-03-13T07:42:52Z,200,0,22,0
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CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
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CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
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CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80
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