🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 184 (from laksa130)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa184.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://community.wolfram.com/groups/-/m/t/149586\')), getAhrefsUnparsedNoserviceFromURL(\'https://community.wolfram.com/groups/-/m/t/149586\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/community.wolfram.com\/groups\/-\/m\/t\/149586","crawl_time":1774198576,"first_indexed_time":1543127653,"http_code":200,"src_unparsed":"com,wolfram!community,\/groups\/-\/m\/t\/149586 s443","src_root_hash":"3744487911316863784","history_drop_reason":null,"meta_title":"Solve Nonlinear 2nd Order Partial Differential Equation Numerically? - Online Technical Discussion Groups—Wolfram Community","meta_descriptions":["Wolfram Community forum discussion about Solve Nonlinear 2nd Order Partial Differential Equation Numerically?. Stay on top of important topics and build connections by joining Wolfram Community groups relevant to your interests."],"attrs_boilerpipe_text":"Hey!\nI am kind of new to mathematica so I don't know a lot of stuff... \nSo trying to put the question in context... I want to know if there is a way in Mathematica 9 to solve \nNonlinear Second Order Parial Differential Equation?\nI understand that I cannot use \nDSolve \nsince its a Second Order PDE but even with \nNDSolve\n, I keep getting errors..\nMy\nPDEs\n are something like this:\nfpde = (1 + (D[y[x, t], t])^2) (D[y[x, t], {x, 2}]) + (1 + (D[y[x, t], x])^2) (D[y[x, t], {t, 2}]) == 0;\ni.e.\n(1 + (\nd\ny \/ \nd\nt)^2 ) * (\nd2\ny \/ \nd\nx2))   +   (1 + (\nd\ny \/\nd\nx)^2 ) * (\nd2\ny \/\nd?\nt2))    =    0\nwhere y is a function of x and t.\nI also give\ntwo boundary conditions\nand\none initial conditon\nwhile using NDSolve\nI have tried the following:\nmysol = NDSolve[{fpde, y[0, t] == 0, y[2 Pi, t] == 0, y[x, Pi\/4] == 0}, y, {x, 0, 2 Pi}, {t, 0, 2 Pi}]\nError : The number of constraints (1) (initial conditions) is not equal to the total differential order of the system plus the number of discrete variables (2).\nmysol = NDSolve[{fpde, y[0, t] == 0, y[2 Pi, t] == 0, Derivative[1, 0][y][x, 2 Pi] == Tan[x]}, y, {x, 0, 2 Pi}, {t, 0, 2 Pi}]\nError: Boundary values may only be specified for one independent variable. Initial values may only be specified at one value of the other independent variable.\nI can't figure out if my application of the command is incorrect or if a different approach is required to solve such PDEs.\nMy objective is to get the numerical solution to such an equation.\nThanks a lot!","attrs_markdown":"[![](https:\/\/community.wolfram.com\/community-theme\/images\/community-header-new.png) WOLFRAM COMMUNITY Connect with users of Wolfram technologies to learn, solve problems and share ideas](https:\/\/community.wolfram.com\/)\n\n[Join](https:\/\/community.wolfram.com\/delegate\/registration-portlet\/) [Sign In](https:\/\/community.wolfram.com\/delegate\/login-portlet\/)\n\n[Dashboard](https:\/\/community.wolfram.com\/dashboard)\n\n[Groups](https:\/\/community.wolfram.com\/groups)\n\n[People](https:\/\/community.wolfram.com\/people)\n\n# ![Group Abstract](https:\/\/community.wolfram.com\/group-abstract-portlet\/icon.png)  Group Abstract\n# ![Message Boards](https:\/\/community.wolfram.com\/community-theme\/images\/spacer.png)  Message Boards\n![](https:\/\/community.wolfram.com\/community-theme\/images\/common\/checked.png) Answer  ([Unmark]())\n\n[![](https:\/\/community.wolfram.com\/community-theme\/images\/common\/checked.png) Mark as an Answer]()\n\nReply to this discussion\n\nin reply to\n\n- ![]()Add Notebook\n\nCommunity posts can be styled and formatted using the  [Markdown syntax](http:\/\/daringfireball.net\/projects\/markdown\/syntax).\n\nTag limit exceeded\n\nNote: Only the first five people you tag will receive an email notification; the other tagged names will appear as links to their profiles.\n\nPublish anyway\n\nCancel\n\nReply Preview\n\nAttachments\n\n[Remove]()\n\nAdd a file to this post\n\nFollow this discussion\n\nor [Discard]()\n\nBe respectful. 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3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

23 days 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`	0.8 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

Page Details

Property	Value
URL	https://community.wolfram.com/groups/-/m/t/149586
Last Crawled	2026-03-22 16:56:16 (23 days ago)
First Indexed	2018-11-25 06:34:13 (7 years ago)
HTTP Status Code	200
Meta Title	Solve Nonlinear 2nd Order Partial Differential Equation Numerically? - Online Technical Discussion Groups—Wolfram Community
Meta Description	Wolfram Community forum discussion about Solve Nonlinear 2nd Order Partial Differential Equation Numerically?. Stay on top of important topics and build connections by joining Wolfram Community groups relevant to your interests.
Meta Canonical	null
Boilerpipe Text	Hey! I am kind of new to mathematica so I don't know a lot of stuff... So trying to put the question in context... I want to know if there is a way in Mathematica 9 to solve Nonlinear Second Order Parial Differential Equation? I understand that I cannot use DSolve since its a Second Order PDE but even with NDSolve , I keep getting errors.. My PDEs are something like this: fpde = (1 + (D[y[x, t], t])^2) (D[y[x, t], {x, 2}]) + (1 + (D[y[x, t], x])^2) (D[y[x, t], {t, 2}]) == 0; i.e. (1 + ( d y / d t)^2 ) * ( d2 y / d x2)) + (1 + ( d y / d x)^2 ) * ( d2 y / d? t2)) = 0 where y is a function of x and t. I also give two boundary conditions and one initial conditon while using NDSolve I have tried the following: mysol = NDSolve[{fpde, y[0, t] == 0, y[2 Pi, t] == 0, y[x, Pi/4] == 0}, y, {x, 0, 2 Pi}, {t, 0, 2 Pi}] Error : The number of constraints (1) (initial conditions) is not equal to the total differential order of the system plus the number of discrete variables (2). mysol = NDSolve[{fpde, y[0, t] == 0, y[2 Pi, t] == 0, Derivative[1, 0][y][x, 2 Pi] == Tan[x]}, y, {x, 0, 2 Pi}, {t, 0, 2 Pi}] Error: Boundary values may only be specified for one independent variable. Initial values may only be specified at one value of the other independent variable. I can't figure out if my application of the command is incorrect or if a different approach is required to solve such PDEs. My objective is to get the numerical solution to such an equation. Thanks a lot!
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Readable Markdown	null
Shard	184 (laksa)
Root Hash	3744487911316863784
Unparsed URL	com,wolfram!community,/groups/-/m/t/149586 s443