Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 132 (from laksa020)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa132.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 = 16 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.cs.uga.edu/undergraduate-course-selection-guide\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.cs.uga.edu/undergraduate-course-selection-guide\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.cs.uga.edu\/undergraduate-course-selection-guide","crawl_time":1776301018,"first_indexed_time":1717501555,"http_code":200,"src_unparsed":"edu,uga!cs,www,\/undergraduate-course-selection-guide s443","src_root_hash":"14186890701560423332","history_drop_reason":null,"meta_title":"Undergraduate Course Selection Guide | School of Computing","meta_descriptions":["Regardless of where you are in the CSCI curriculum, it is critical that you review the concepts taught in your previous (prerequisite) courses before starting classes each semester. As an incoming UGA student, you should also make sure the course you are considering is appropriate for your experience level. This guide will help you select the appropriate CSCI course to begin with at UGA."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1717501555,"attrs_is_republished":0,"attrs_nr_words":"1872","attrs_boilerpipe_nr_words":"1399","body_ext_links_number":18,"body_int_links_number":113,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":1063,"download_ttfb_msec":1062,"download_size":18613}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.6 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.cs.uga.edu/undergraduate-course-selection-guide
Last Crawled	2026-04-16 00:56:58 (1 month ago)
First Indexed	2024-06-04 11:45:55 (1 year ago)
HTTP Status Code	200
Content
Meta Title	Undergraduate Course Selection Guide \| School of Computing
Meta Description	Regardless of where you are in the CSCI curriculum, it is critical that you review the concepts taught in your previous (prerequisite) courses before starting classes each semester. As an incoming UGA student, you should also make sure the course you are considering is appropriate for your experience level. This guide will help you select the appropriate CSCI course to begin with at UGA.
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	null
Publish Time	not set
Original Publish Time	2024-06-04 11:45:55 (1 year ago)
Republished	No
Word Count (Total)	1,872
Word Count (Content)	1,399
Links
External Links	18
Internal Links	113
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	1,063
TTFB (ms)	1,062
Download Size (bytes)	18,613
Location
Host ID	132 (laksa132)
Partition ID	16
Root Hash	14186890701560423332
Unparsed URL	edu,uga!cs,www,/undergraduate-course-selection-guide s443

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1. Shard Calculation

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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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