Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 126 (from laksa015)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa126.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, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Calculus/539232\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Calculus/539232\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.mathway.com\/popular-problems\/Calculus\/539232","crawl_time":1759120422,"first_indexed_time":1754550000,"http_code":200,"src_unparsed":"com,mathway!www,\/popular-problems\/Calculus\/539232 s443","src_root_hash":"5341967438836450526","history_drop_reason":null,"meta_title":"Simplify sin(2(pi)) | Mathway","meta_descriptions":["Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor."],"attrs_boilerpipe_text":"Subtract full  rotations  of  until the  angle  is greater than or equal to  and less than .","attrs_markdown":"Enter a problem...\n\n# Calculus Examples\n[Popular Problems](https:\/\/www.mathway.com\/popular-problems)\n\n[Calculus](https:\/\/www.mathway.com\/popular-problems\/Calculus)\n\nSimplify sin(2(pi))\n\nStep 1\n\nSubtract full rotations of until the angle is greater than or equal to and less than .\n\nStep 2\n\nThe exact value of is .\n\nPlease ensure that your password is at least 8 characters and contains each of the following:\n\n- a number\n- a letter\n- a special character: @\\$\\#!%\\*?&","attrs_readable_markdown":null,"meta_canonical":null}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	6.4 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.mathway.com/popular-problems/Calculus/539232
Last Crawled	2025-09-29 04:33:42 (6 months ago)
First Indexed	2025-08-07 07:00:00 (8 months ago)
HTTP Status Code	200
Meta Title	Simplify sin(2(pi)) \| Mathway
Meta Description	Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.
Meta Canonical	null
Boilerpipe Text	Subtract full rotations of until the angle is greater than or equal to and less than .
Markdown	Enter a problem... # Calculus Examples [Popular Problems](https://www.mathway.com/popular-problems) [Calculus](https://www.mathway.com/popular-problems/Calculus) Simplify sin(2(pi)) Step 1 Subtract full rotations of until the angle is greater than or equal to and less than . Step 2 The exact value of is . Please ensure that your password is at least 8 characters and contains each of the following: - a number - a letter - a special character: @\$\#!%\*?&
Readable Markdown	null
Shard	126 (laksa)
Root Hash	5341967438836450526
Unparsed URL	com,mathway!www,/popular-problems/Calculus/539232 s443

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