Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 2 (from laksa137)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa002.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 = 99 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.c-sharpcorner.com/article/list-of-all-http-status-codes/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.c-sharpcorner.com/article/list-of-all-http-status-codes/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.c-sharpcorner.com\/article\/list-of-all-http-status-codes\/","crawl_time":1779520198,"first_indexed_time":1712299923,"http_code":200,"src_unparsed":"com,c-sharpcorner!www,\/article\/list-of-all-http-status-codes\/ s443","src_root_hash":"5302293097463619802","history_drop_reason":null,"meta_title":"List of all the HTTP Status Codes","meta_descriptions":["HTTP status codes are a crucial aspect of communication between clients (such as web browsers or mobile apps) and servers on the internet. In this article, we will delve into the significance and meaning of various HTTP status codes across different categories."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":"Jitendra Mesavaniya","attrs_publish_time":0,"attrs_original_publish_time":1712299923,"attrs_is_republished":0,"attrs_nr_words":"1605","attrs_boilerpipe_nr_words":"1424","body_ext_links_number":42,"body_int_links_number":90,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":322,"download_ttfb_msec":298,"download_size":60042}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.4 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.c-sharpcorner.com/article/list-of-all-http-status-codes/
Last Crawled	2026-05-23 07:09:58 (11 days ago)
First Indexed	2024-04-05 06:52:03 (2 years ago)
HTTP Status Code	200
Content
Meta Title	List of all the HTTP Status Codes
Meta Description	HTTP status codes are a crucial aspect of communication between clients (such as web browsers or mobile apps) and servers on the internet. In this article, we will delve into the significance and meaning of various HTTP status codes across different categories.
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	Jitendra Mesavaniya
Publish Time	not set
Original Publish Time	2024-04-05 06:52:03 (2 years ago)
Republished	No
Word Count (Total)	1,605
Word Count (Content)	1,424
Links
External Links	42
Internal Links	90
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	322
TTFB (ms)	298
Download Size (bytes)	60,042
Location
Host ID	2 (laksa002)
Partition ID	99
Root Hash	5302293097463619802
Unparsed URL	com,c-sharpcorner!www,/article/list-of-all-http-status-codes/ s443

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1. Shard Calculation

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2. Crawled Status Check

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4. Spam/Ban Check

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5. Seen Status Check

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