Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 143 (from laksa193)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa143.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 = 61 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://timanderson1994.github.io/Resources/CME-Notes/CME102/Laplace\')), getAhrefsUnparsedNoserviceFromURL(\'https://timanderson1994.github.io/Resources/CME-Notes/CME102/Laplace\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/timanderson1994.github.io\/Resources\/CME-Notes\/CME102\/Laplace","crawl_time":1770435740,"first_indexed_time":0,"http_code":200,"src_unparsed":"io,github!timanderson1994,\/Resources\/CME-Notes\/CME102\/Laplace s443","src_root_hash":"2566890010099092343","history_drop_reason":null,"meta_title":"Laplace Transforms – Tim Anderson","meta_descriptions":["Personal website and research blog for Timothy Anderson, Research Scientist at Meta. I post about research, books, cooking, and notes for courses I've TAed in the past."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":null,"attrs_author":"Tim Anderson","attrs_publish_time":0,"attrs_original_publish_time":1655182370,"attrs_is_republished":0,"attrs_nr_words":"3767","attrs_boilerpipe_nr_words":"3751","body_ext_links_number":3,"body_int_links_number":7,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":40,"download_ttfb_msec":40,"download_size":9853}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	3.9 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://timanderson1994.github.io/Resources/CME-Notes/CME102/Laplace
Last Crawled	2026-02-07 03:42:20 (3 months ago)
First Indexed	not set
HTTP Status Code	200
Content
Meta Title	Laplace Transforms – Tim Anderson
Meta Description	Personal website and research blog for Timothy Anderson, Research Scientist at Meta. I post about research, books, cooking, and notes for courses I've TAed in the past.
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	null
Author	Tim Anderson
Publish Time	not set
Original Publish Time	2022-06-14 04:52:50 (3 years ago)
Republished	No
Word Count (Total)	3,767
Word Count (Content)	3,751
Links
External Links	3
Internal Links	7
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	40
TTFB (ms)	40
Download Size (bytes)	9,853
Location
Host ID	143 (laksa143)
Partition ID	61
Root Hash	2566890010099092343
Unparsed URL	io,github!timanderson1994,/Resources/CME-Notes/CME102/Laplace s443

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1. Shard Calculation

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2. Crawled Status Check

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3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

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Response:

5. Seen Status Check

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