🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 53 (from laksa163)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa053.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://matrix.reshish.com/matrix-multiplication/\')), getAhrefsUnparsedNoserviceFromURL(\'https://matrix.reshish.com/matrix-multiplication/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/matrix.reshish.com\/matrix-multiplication\/","crawl_time":1775859158,"first_indexed_time":1752090457,"http_code":200,"src_unparsed":"com,reshish!matrix,\/matrix-multiplication\/ s443","src_root_hash":"7745344111639527053","history_drop_reason":null,"meta_title":"Matrix Multiplication Calculator","meta_descriptions":["Here you can perform matrix multiplication with complex numbers online for free. After calculation you can multiply the result by another matrix right there!"],"attrs_boilerpipe_text":"Here you can perform\nmatrix multiplication\nwith\ncomplex numbers\nonline for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa.\nAfter calculation you can multiply the result by another matrix right there!\nHave questions? Read the\ninstructions\n.\nAbout the method\nThe main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one.\nAs a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one.\nFor example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension.\nTo understand matrix multiplication better input any example and examine the solution.","attrs_markdown":"This website is made of javascript on 90% and doesn't work without it. You need to enable it.\n\n![en](https:\/\/matrix.reshish.com\/images\/flags\/en.png)\n\n- [Instructions](https:\/\/matrix.reshish.com\/instructions\/)\n- [Feedback](https:\/\/matrix.reshish.com\/feedback\/)\n\n[![Logo](https:\/\/matrix.reshish.com\/images\/logo\/desktop\/matrixLogo.png)](https:\/\/matrix.reshish.com\/)\n\n- [Matrix Multiplication](https:\/\/matrix.reshish.com\/matrix-multiplication\/)\n- [Determinant](https:\/\/matrix.reshish.com\/determinant\/)\n- [Inverse Matrix](https:\/\/matrix.reshish.com\/inverse-matrix\/)\n- [Gauss-Jordan Elimination](https:\/\/matrix.reshish.com\/gauss-jordan-elimination\/)\n- [Cramer's Rule](https:\/\/matrix.reshish.com\/cramer\/)\n- [Matrix Rank](https:\/\/matrix.reshish.com\/matrix-rank\/)\n- [Matrix Power](https:\/\/matrix.reshish.com\/matrix-power\/)\n- [Matrix Transpose](https:\/\/matrix.reshish.com\/matrix-transpose\/)\n- [Matrix Addition\/Subtraction](https:\/\/matrix.reshish.com\/matrix-addition-subtraction\/)\n- [Inverse Matrix Method](https:\/\/matrix.reshish.com\/inverse-matrix-method\/)\n\n# Matrix Multiplication Calculator\nHere you can perform **matrix multiplication** with [complex numbers](https:\/\/matrix.reshish.com\/complex-numbers\/) online for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa.  \nAfter calculation you can multiply the result by another matrix right there\\!\n\nHave questions? Read the [instructions](https:\/\/matrix.reshish.com\/instructions\/).\n\n### About the method\n1. The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one.\n2. As a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one.\n3. For example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension.\n\nTo understand matrix multiplication better input any example and examine the solution.\n\n▲ Up\n\n© [reshish.com](https:\/\/reshish.com\/) 2011 - 2026\n\n[Mobile version](https:\/\/m.matrix.reshish.com\/matrix-multiplication\/)\n\n[Privacy Policy](https:\/\/matrix.reshish.com\/privacy-policy\/)\n\n![](https:\/\/mc.yandex.ru\/watch\/30961206)","attrs_readable_markdown":"Here you can perform **matrix multiplication** with [complex numbers](https:\/\/matrix.reshish.com\/complex-numbers\/) online for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa.  \nAfter calculation you can multiply the result by another matrix right there\\!\n\nHave questions? Read the [instructions](https:\/\/matrix.reshish.com\/instructions\/).\n\n### About the method\n1. The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one.\n2. As a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one.\n3. For example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension.\n\nTo understand matrix multiplication better input any example and examine the solution.","meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

6 hours ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	0 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://matrix.reshish.com/matrix-multiplication/
Last Crawled	2026-04-10 22:12:38 (6 hours ago)
First Indexed	2025-07-09 19:47:37 (9 months ago)
HTTP Status Code	200
Meta Title	Matrix Multiplication Calculator
Meta Description	Here you can perform matrix multiplication with complex numbers online for free. After calculation you can multiply the result by another matrix right there!
Meta Canonical	null
Boilerpipe Text	Here you can perform matrix multiplication with complex numbers online for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa. After calculation you can multiply the result by another matrix right there! Have questions? Read the instructions . About the method The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one. As a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one. For example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension. To understand matrix multiplication better input any example and examine the solution.
Markdown	This website is made of javascript on 90% and doesn't work without it. You need to enable it. ![en](https://matrix.reshish.com/images/flags/en.png) - [Instructions](https://matrix.reshish.com/instructions/) - [Feedback](https://matrix.reshish.com/feedback/) [![Logo](https://matrix.reshish.com/images/logo/desktop/matrixLogo.png)](https://matrix.reshish.com/) - [Matrix Multiplication](https://matrix.reshish.com/matrix-multiplication/) - [Determinant](https://matrix.reshish.com/determinant/) - [Inverse Matrix](https://matrix.reshish.com/inverse-matrix/) - [Gauss-Jordan Elimination](https://matrix.reshish.com/gauss-jordan-elimination/) - [Cramer's Rule](https://matrix.reshish.com/cramer/) - [Matrix Rank](https://matrix.reshish.com/matrix-rank/) - [Matrix Power](https://matrix.reshish.com/matrix-power/) - [Matrix Transpose](https://matrix.reshish.com/matrix-transpose/) - [Matrix Addition/Subtraction](https://matrix.reshish.com/matrix-addition-subtraction/) - [Inverse Matrix Method](https://matrix.reshish.com/inverse-matrix-method/) # Matrix Multiplication Calculator Here you can perform matrix multiplication with [complex numbers](https://matrix.reshish.com/complex-numbers/) online for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa. After calculation you can multiply the result by another matrix right there\! Have questions? Read the [instructions](https://matrix.reshish.com/instructions/). ### About the method 1. The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one. 2. As a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one. 3. For example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension. To understand matrix multiplication better input any example and examine the solution. ▲ Up © [reshish.com](https://reshish.com/) 2011 - 2026 [Mobile version](https://m.matrix.reshish.com/matrix-multiplication/) [Privacy Policy](https://matrix.reshish.com/privacy-policy/) ![](https://mc.yandex.ru/watch/30961206)
Readable Markdown	Here you can perform matrix multiplication with [complex numbers](https://matrix.reshish.com/complex-numbers/) online for free. However matrices can be not only two-dimensional, but also one-dimensional (vectors), so that you can multiply vectors, vector by matrix and vice versa. After calculation you can multiply the result by another matrix right there\! Have questions? Read the [instructions](https://matrix.reshish.com/instructions/). ### About the method 1. The main condition of matrix multiplication is that the number of columns of the 1st matrix must equal to the number of rows of the 2nd one. 2. As a result of multiplication you will get a new matrix that has the same quantity of rows as the 1st one has and the same quantity of columns as the 2nd one. 3. For example if you multiply a matrix of 'n' x 'k' by 'k' x 'm' size you'll get a new one of 'n' x 'm' dimension. To understand matrix multiplication better input any example and examine the solution.
Shard	53 (laksa)
Root Hash	7745344111639527053
Unparsed URL	com,reshish!matrix,/matrix-multiplication/ s443