Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 51 (from laksa197)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa051.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.youtube.com/@HowCanITieaTie\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.youtube.com/@HowCanITieaTie\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.youtube.com\/@HowCanITieaTie","crawl_time":1775024683,"first_indexed_time":0,"http_code":200,"src_unparsed":"com,youtube!www,\/@HowCanITieaTie s443","src_root_hash":"3907445400264388851","history_drop_reason":null,"meta_title":"How Can I Tie a Tie - YouTube","meta_descriptions":["Struggling with tie knots? Welcome to How Can I Tie a Tie! Your ultimate guide to mastering the art of tying a tie. Whether you're learning classic knots lik..."],"attrs_boilerpipe_text":null,"attrs_markdown":"[About](https:\/\/www.youtube.com\/about\/)[Press](https:\/\/www.youtube.com\/about\/press\/)[Copyright](https:\/\/www.youtube.com\/about\/copyright\/)[Contact us](https:\/\/www.youtube.com\/t\/contact_us\/)[Creators](https:\/\/www.youtube.com\/creators\/)[Advertise](https:\/\/www.youtube.com\/ads\/)[Developers](https:\/\/developers.google.com\/youtube)[Terms](https:\/\/www.youtube.com\/t\/terms)[Privacy](https:\/\/www.youtube.com\/t\/privacy)[Policy & Safety](https:\/\/www.youtube.com\/about\/policies\/)[How YouTube works](https:\/\/www.youtube.com\/howyoutubeworks?utm_campaign=ytgen&utm_source=ythp&utm_medium=LeftNav&utm_content=txt&u=https%3A%2F%2Fwww.youtube.com%2Fhowyoutubeworks%3Futm_source%3Dythp%26utm_medium%3DLeftNav%26utm_campaign%3Dytgen)[Test new features](https:\/\/www.youtube.com\/new)[Accessibility](https:\/\/support.google.com\/youtube\/answer\/16668503?hl=en&sjid=7783677992881552504-NC)\n\n© 2026 Google LLC","attrs_readable_markdown":null,"meta_canonical":"com,youtube!www,\/channel\/UCUBVDvFuxEFfH1_QYHCWd7g s443"}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.2 months ago (distributed domain, exempt)
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	FAIL	`meta_canonical IS NULL OR = '' OR = src_unparsed`	com,youtube!www,/channel/UCUBVDvFuxEFfH1_QYHCWd7g s443

Property	Value
URL	https://www.youtube.com/@HowCanITieaTie
Last Crawled	2026-04-01 06:24:43 (7 days ago)
First Indexed	not set
HTTP Status Code	200
Meta Title	How Can I Tie a Tie - YouTube
Meta Description	Struggling with tie knots? Welcome to How Can I Tie a Tie! Your ultimate guide to mastering the art of tying a tie. Whether you're learning classic knots lik...
Meta Canonical	com,youtube!www,/channel/UCUBVDvFuxEFfH1_QYHCWd7g s443
Boilerpipe Text	null
Markdown	[About](https://www.youtube.com/about/)[Press](https://www.youtube.com/about/press/)[Copyright](https://www.youtube.com/about/copyright/)[Contact us](https://www.youtube.com/t/contact_us/)[Creators](https://www.youtube.com/creators/)[Advertise](https://www.youtube.com/ads/)[Developers](https://developers.google.com/youtube)[Terms](https://www.youtube.com/t/terms)[Privacy](https://www.youtube.com/t/privacy)[Policy & Safety](https://www.youtube.com/about/policies/)[How YouTube works](https://www.youtube.com/howyoutubeworks?utm_campaign=ytgen&utm_source=ythp&utm_medium=LeftNav&utm_content=txt&u=https%3A%2F%2Fwww.youtube.com%2Fhowyoutubeworks%3Futm_source%3Dythp%26utm_medium%3DLeftNav%26utm_campaign%3Dytgen)[Test new features](https://www.youtube.com/new)[Accessibility](https://support.google.com/youtube/answer/16668503?hl=en&sjid=7783677992881552504-NC) © 2026 Google LLC
Readable Markdown	null
Shard	51 (laksa)
Root Hash	3907445400264388851
Unparsed URL	com,youtube!www,/@HowCanITieaTie s443

🕷️ Crawler Inspector

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1. Shard Calculation

Query:

Response:

2. Crawled Status Check

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Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

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Response:

5. Seen Status Check

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