Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 198 (from laksa110)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa198.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 = 86 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://chenxing.space/blog/beta-distribution-intuition-derivation-and-examples/\')), getAhrefsUnparsedNoserviceFromURL(\'https://chenxing.space/blog/beta-distribution-intuition-derivation-and-examples/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/chenxing.space\/blog\/beta-distribution-intuition-derivation-and-examples\/","crawl_time":1779126001,"first_indexed_time":1683739730,"http_code":200,"src_unparsed":"space,chenxing!\/blog\/beta-distribution-intuition-derivation-and-examples\/ s443","src_root_hash":"16129942168117797398","history_drop_reason":null,"meta_title":"Beta Distribution — Intuition, Derivation, and Examples | Chen Xing","meta_descriptions":["Motivation Model probabilities The Beta distribution is a probability distribution on probabilities. The Beta distribution can be understood as representing a distribution of probabilities, that is, it represents all the"],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en-us","attrs_author":"Chen Xing","attrs_publish_time":1659484800,"attrs_original_publish_time":1659484800,"attrs_is_republished":0,"attrs_nr_words":"1421","attrs_boilerpipe_nr_words":"1297","body_ext_links_number":11,"body_int_links_number":17,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":600,"download_ttfb_msec":590,"download_size":9229}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0.5 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://chenxing.space/blog/beta-distribution-intuition-derivation-and-examples/
Last Crawled	2026-05-18 17:40:01 (15 days ago)
First Indexed	2023-05-10 17:28:50 (3 years ago)
HTTP Status Code	200
Content
Meta Title	Beta Distribution — Intuition, Derivation, and Examples \| Chen Xing
Meta Description	Motivation Model probabilities The Beta distribution is a probability distribution on probabilities. The Beta distribution can be understood as representing a distribution of probabilities, that is, it represents all the
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-us
Author	Chen Xing
Publish Time	2022-08-03 00:00:00 (3 years ago)
Original Publish Time	2022-08-03 00:00:00 (3 years ago)
Republished	No
Word Count (Total)	1,421
Word Count (Content)	1,297
Links
External Links	11
Internal Links	17
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	600
TTFB (ms)	590
Download Size (bytes)	9,229
Location
Host ID	198 (laksa198)
Partition ID	86
Root Hash	16129942168117797398
Unparsed URL	space,chenxing!/blog/beta-distribution-intuition-derivation-and-examples/ s443

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1. Shard Calculation

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Response:

2. Crawled Status Check

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3. Robots.txt Check

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4. Spam/Ban Check

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Response:

5. Seen Status Check

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