Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 126 (from laksa103)

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/301716\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Trigonometry/301716\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.mathway.com\/popular-problems\/Trigonometry\/301716","crawl_time":1755950506,"first_indexed_time":1477926148,"http_code":200,"src_unparsed":"com,mathway!www,\/popular-problems\/Trigonometry\/301716 s443","src_root_hash":"5341967438836450526","history_drop_reason":null,"meta_title":"Find the Value Using the Unit Circle 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":"Find the value using the definition of  sine .","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\nFind the Value Using the Unit Circle sin(2pi)\n\nStep 1\n\nFind the value using the definition of sine.\n\nStep 2\n\nSubstitute the values into the definition.\n\nStep 3\n\nDivide by .\n\nStep 4\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`	7.7 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/301716
Last Crawled	2025-08-23 12:01:46 (7 months ago)
First Indexed	2016-10-31 15:02:28 (9 years ago)
HTTP Status Code	200
Meta Title	Find the Value Using the Unit Circle 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	Find the value using the definition of sine .
Markdown	Enter a problem... # Trigonometry Examples [Popular Problems](https://www.mathway.com/popular-problems) [Trigonometry](https://www.mathway.com/popular-problems/Trigonometry) Find the Value Using the Unit Circle sin(2pi) Step 1 Find the value using the definition of sine. Step 2 Substitute the values into the definition. Step 3 Divide by . Step 4 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/301716 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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