Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 126 (from laksa047)

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/Trigonometry/349994\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Trigonometry/349994\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.mathway.com\/popular-problems\/Trigonometry\/349994","crawl_time":1755354418,"first_indexed_time":1506643496,"http_code":200,"src_unparsed":"com,mathway!www,\/popular-problems\/Trigonometry\/349994 s443","src_root_hash":"5341967438836450526","history_drop_reason":null,"meta_title":"Graph sin(2pi) | 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":"Please ensure that your password is at least 8 characters and contains each of the following: a number a letter a special character: @$#!%*?&","attrs_markdown":"Enter a problem...\n\n# Trigonometry Examples\n[Popular Problems](https:\/\/www.mathway.com\/popular-problems)\n\n[Trigonometry](https:\/\/www.mathway.com\/popular-problems\/Trigonometry)\n\nGraph sin(2pi)\n\nI am unable to solve this problem.\n\nPlease ensure that your password is at least 8 characters and contains each of the following:\n\n- a number\n- a letter\n- a special character: @\\$\\#!%\\*?&","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`	7.8 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/Trigonometry/349994
Last Crawled	2025-08-16 14:26:58 (7 months ago)
First Indexed	2017-09-29 00:04:56 (8 years ago)
HTTP Status Code	200
Meta Title	Graph sin(2pi) \| 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	Please ensure that your password is at least 8 characters and contains each of the following: a number a letter a special character: @$#!%*?&
Markdown	Enter a problem... # Trigonometry Examples [Popular Problems](https://www.mathway.com/popular-problems) [Trigonometry](https://www.mathway.com/popular-problems/Trigonometry) Graph sin(2pi) I am unable to solve this problem. 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/Trigonometry/349994 s443

🕷️ Crawler Inspector

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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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