Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 51 (from laksa126)

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/KoreanAir\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.youtube.com/KoreanAir\'))) FORMAT JSONEachRow'

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	3.6 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/UCdEkKjMLL_MnxTpO-iqsQkQ s443

Property	Value
URL	https://www.youtube.com/KoreanAir
Last Crawled	2025-12-26 08:14:07 (3 months ago)
First Indexed	not set
HTTP Status Code	200
Meta Title	대한항공 (Korean Air) - YouTube
Meta Description	Anywhere is possible. 대한항공 공식 유튜브 채널입니다✈
Meta Canonical	com,youtube!www,/channel/UCdEkKjMLL_MnxTpO-iqsQkQ s443
Boilerpipe Text	Include playlist An error occurred while retrieving sharing information. Please try again later.
Markdown	null
Readable Markdown	null
Shard	51 (laksa)
Root Hash	3907445400264388851
Unparsed URL	com,youtube!www,/KoreanAir s443

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1. Shard Calculation

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Response:

2. Crawled Status Check

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3. Robots.txt Check

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4. Spam/Ban Check

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5. Seen Status Check

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