Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 51 (from laksa171)

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://codemia.io/knowledge-hub/path/kill_detached_screen_session\')), getAhrefsUnparsedNoserviceFromURL(\'https://codemia.io/knowledge-hub/path/kill_detached_screen_session\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/codemia.io\/knowledge-hub\/path\/kill_detached_screen_session","crawl_time":1772367751,"first_indexed_time":0,"http_code":200,"src_unparsed":"io,codemia!\/knowledge-hub\/path\/kill_detached_screen_session s443","src_root_hash":"18438253623908027451","history_drop_reason":null,"meta_title":"Codemia | Master System Design Interviews Through Active Practice","meta_descriptions":[],"attrs_boilerpipe_text":"Master System Design with Codemia\nEnhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises.\nStart Practicing\nLearn More","attrs_markdown":"[Practice Now](https:\/\/codemia.io\/system-design)\n\n1. [Home](https:\/\/codemia.io\/system-design)\n2. [Knowledge Hub](https:\/\/codemia.io\/knowledge-hub)\n3. ###### Details\n\n#### Master System Design with Codemia\nEnhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises.\n\n[Start Practicing](https:\/\/codemia.io\/system-design)[Learn More](https:\/\/codemia.io\/)\n***\n![Course illustration](https:\/\/codemia.io\/assets\/large-placeholder-course.png)\n\n![Course illustration](https:\/\/codemia.io\/assets\/large-placeholder-course.png)\n\n[Codemia](https:\/\/codemia.io\/)\n\n© 2026 Codemia\n\nResources\n\nLegal\n\nSocial\n***\nAll Rights Reserved.","attrs_readable_markdown":"#### Master System Design with Codemia\nEnhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises.\n\n[Start Practicing](https:\/\/codemia.io\/system-design)[Learn More](https:\/\/codemia.io\/)","meta_canonical":null}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.2 months ago
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	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Property	Value
URL	https://codemia.io/knowledge-hub/path/kill_detached_screen_session
Last Crawled	2026-03-01 12:22:31 (1 month ago)
First Indexed	not set
HTTP Status Code	200
Meta Title	Codemia \| Master System Design Interviews Through Active Practice
Meta Description	null
Meta Canonical	null
Boilerpipe Text	Master System Design with Codemia Enhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises. Start Practicing Learn More
Markdown	[Practice Now](https://codemia.io/system-design) 1. [Home](https://codemia.io/system-design) 2. [Knowledge Hub](https://codemia.io/knowledge-hub) 3. ###### Details #### Master System Design with Codemia Enhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises. [Start Practicing](https://codemia.io/system-design)[Learn More](https://codemia.io/) * ![Course illustration](https://codemia.io/assets/large-placeholder-course.png) ![Course illustration](https://codemia.io/assets/large-placeholder-course.png) [Codemia](https://codemia.io/) © 2026 Codemia Resources Legal Social * All Rights Reserved.
Readable Markdown	#### Master System Design with Codemia Enhance your system design skills with over 120 practice problems, detailed solutions, and hands-on exercises. [Start Practicing](https://codemia.io/system-design)[Learn More](https://codemia.io/)
Shard	51 (laksa)
Root Hash	18438253623908027451
Unparsed URL	io,codemia!/knowledge-hub/path/kill_detached_screen_session s443

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1. Shard Calculation

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4. Spam/Ban Check

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5. Seen Status Check

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