🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 126 (from laksa034)

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, 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 (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Trigonometry/340176\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.mathway.com/popular-problems/Trigonometry/340176\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.mathway.com\/popular-problems\/Trigonometry\/340176","crawl_time":1758825483,"first_indexed_time":0,"http_code":200,"src_unparsed":"com,mathway!www,\/popular-problems\/Trigonometry\/340176 s443","src_root_hash":"5341967438836450526","history_drop_reason":null,"meta_title":"Verify the Identity sin(2pi-x)=-sin(x) | 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":"Because the two sides have been shown to be  equivalent , the  equation  is an  identity .","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\nVerify the Identity sin(2pi-x)=-sin(x)\n\nStep 1\n\nStart on the left side.\n\nStep 2\n\nApply the difference of angles identity.\n\nStep 3\n\nSimplify the expression.\n\nTap for more steps...\n\nStep 3.1\n\nSimplify each term.\n\nTap for more steps...\n\nStep 3.1.1\n\nSubtract full rotations of until the angle is greater than or equal to and less than .\n\nStep 3.1.2\n\nThe exact value of is .\n\nStep 3.1.3\n\nMultiply by .\n\nStep 3.1.4\n\nSubtract full rotations of until the angle is greater than or equal to and less than .\n\nStep 3.1.5\n\nThe exact value of is .\n\nStep 3.1.6\n\nMultiply by .\n\nStep 3.1.7\n\nRewrite as .\n\nStep 3.2\n\nSubtract from .\n\nStep 4\n\nBecause the two sides have been shown to be equivalent, the equation is an identity.\n\nis an identity\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,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en-us","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":0,"attrs_is_republished":0,"attrs_nr_words":"174","attrs_boilerpipe_nr_words":"17","body_ext_links_number":0,"body_int_links_number":4,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":270,"download_ttfb_msec":258,"download_size":99129}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

🚫

NOT INDEXABLE

✅

CRAWLED

6 months ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	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

Page Details

Property	Value
URL	https://www.mathway.com/popular-problems/Trigonometry/340176
Last Crawled	2025-09-25 18:38:03 (6 months ago)
First Indexed	not set
HTTP Status Code	200
Content
Meta Title	Verify the Identity sin(2pi-x)=-sin(x) \| 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	Because the two sides have been shown to be equivalent , the equation is an identity .
Markdown	Enter a problem... # Trigonometry Examples [Popular Problems](https://www.mathway.com/popular-problems) [Trigonometry](https://www.mathway.com/popular-problems/Trigonometry) Verify the Identity sin(2pi-x)=-sin(x) Step 1 Start on the left side. Step 2 Apply the difference of angles identity. Step 3 Simplify the expression. Tap for more steps... Step 3.1 Simplify each term. Tap for more steps... Step 3.1.1 Subtract full rotations of until the angle is greater than or equal to and less than . Step 3.1.2 The exact value of is . Step 3.1.3 Multiply by . Step 3.1.4 Subtract full rotations of until the angle is greater than or equal to and less than . Step 3.1.5 The exact value of is . Step 3.1.6 Multiply by . Step 3.1.7 Rewrite as . Step 3.2 Subtract from . Step 4 Because the two sides have been shown to be equivalent, the equation is an identity. is an identity 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
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	en-us
Author	null
Publish Time	not set
Original Publish Time	not set
Republished	No
Word Count (Total)	174
Word Count (Content)	17
Links
External Links	0
Internal Links	4
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	270
TTFB (ms)	258
Download Size (bytes)	99,129
Shard	126 (laksa)
Root Hash	5341967438836450526
Unparsed URL	com,mathway!www,/popular-problems/Trigonometry/340176 s443