Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 115 (from laksa183)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa115.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, meta_canonical AS meta_canonical, ml_categories_json AS ml_categories_json, ml_types_json AS ml_types_json, ml_intent_types_json AS ml_intent_types_json, meta_language AS meta_language, attrs_author AS attrs_author, ifNull(toUnixTimestamp(attrs_publish_time), 0) AS attrs_publish_time, ifNull(toUnixTimestamp(attrs_original_publish_time), 0) AS attrs_original_publish_time, ifNull(attrs_is_republished, 0) AS attrs_is_republished, ifNull(attrs_nr_words, 0) AS attrs_nr_words, ifNull(attrs_boilerpipe_nr_words, 0) AS attrs_boilerpipe_nr_words, ifNull(body_ext_links_number, 0) AS body_ext_links_number, ifNull(body_int_links_number, 0) AS body_int_links_number, ifNull(meta_nofollow, 0) AS meta_nofollow, ifNull(meta_noarchive, 0) AS meta_noarchive, ifNull(props_was_rendered, 0) AS props_was_rendered, ifNull(src_redirect, \'\') AS src_redirect, ifNull(download_time_msec, 0) AS download_time_msec, ifNull(download_ttfb_msec, 0) AS download_ttfb_msec, ifNull(download_size, 0) AS download_size FROM crawler3.page_info_local FINAL PREWHERE int_partition_id = 90 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.oreilly.com/library/view/linux-shell-scripting/9781785284441/ch03s05.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.oreilly.com/library/view/linux-shell-scripting/9781785284441/ch03s05.html\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.oreilly.com\/library\/view\/linux-shell-scripting\/9781785284441\/ch03s05.html","crawl_time":1776202091,"first_indexed_time":1550238064,"http_code":200,"src_unparsed":"com,oreilly!www,\/library\/view\/linux-shell-scripting\/9781785284441\/ch03s05.html s443","src_root_hash":"3309313061461398115","history_drop_reason":null,"meta_title":"Looping around with for - Linux Shell Scripting Essentials [Book]","meta_descriptions":["Looping around with forThe for loop can be used to iterate over the items in a list or till the condition is true.The syntax of using the for loop in bash is as follows:for item in... - Selection from Linux Shell Scripting Essentials [Book]"],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":"Sinny Kumari","attrs_publish_time":0,"attrs_original_publish_time":1550238064,"attrs_is_republished":0,"attrs_nr_words":"2334","attrs_boilerpipe_nr_words":"386","body_ext_links_number":12,"body_int_links_number":240,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":1246,"download_ttfb_msec":1242,"download_size":57803}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.7 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://www.oreilly.com/library/view/linux-shell-scripting/9781785284441/ch03s05.html
Last Crawled	2026-04-14 21:28:11 (1 month ago)
First Indexed	2019-02-15 13:41:04 (7 years ago)
HTTP Status Code	200
Content
Meta Title	Looping around with for - Linux Shell Scripting Essentials [Book]
Meta Description	Looping around with forThe for loop can be used to iterate over the items in a list or till the condition is true.The syntax of using the for loop in bash is as follows:for item in... - Selection from Linux Shell Scripting Essentials [Book]
Meta Canonical	null
Boilerpipe Text	heavy column, fetched on demand
Markdown	heavy column, fetched on demand
Readable Markdown	heavy column, fetched on demand
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	en
Author	Sinny Kumari
Publish Time	not set
Original Publish Time	2019-02-15 13:41:04 (7 years ago)
Republished	No
Word Count (Total)	2,334
Word Count (Content)	386
Links
External Links	12
Internal Links	240
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	1,246
TTFB (ms)	1,242
Download Size (bytes)	57,803
Location
Host ID	115 (laksa115)
Partition ID	90
Root Hash	3309313061461398115
Unparsed URL	com,oreilly!www,/library/view/linux-shell-scripting/9781785284441/ch03s05.html s443

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