🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 198 (from laksa008)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa198.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://pvs-studio.com/en/blog/terms/0064/\')), getAhrefsUnparsedNoserviceFromURL(\'https://pvs-studio.com/en/blog/terms/0064/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/pvs-studio.com\/en\/blog\/terms\/0064\/","crawl_time":1775516005,"first_indexed_time":1619562605,"http_code":200,"src_unparsed":"com,pvs-studio!\/en\/blog\/terms\/0064\/ s443","src_root_hash":"14184891999980795398","history_drop_reason":null,"meta_title":"Operator precedence in C and C++","meta_descriptions":["Any language expression consists of operands (variables, constants, etc.) connected with each other by operators. Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses."],"attrs_boilerpipe_text":"Jul 19 2021\nAny language expression consists of operands (variables, constants, etc.) connected with each other by operators. Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses.\nTable 1. Operation precedence in C\/C++.\nYou may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations (\narticle on the topic\n). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable.\nNote.\nThe PVS-Studio analyzer provides several diagnostics such as\nV648\n. These diagnostics help detect errors related to operator precedence.\nTry\nto check your code.\nReferences\nWikipedia.\nOperators in C and C++\n.\nCppreference.\nC++ Operator Precedence\n.\n0\n0","attrs_markdown":"![](https:\/\/mc.yandex.ru\/watch\/45868449)\n\n![Unicorn with delicious cookie](data:,)\n\nOur [website uses cookies](https:\/\/pvs-studio.com\/en\/privacy-policy\/) to enhance your browsing experience.\n\nAccept\n\n![to the top](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/arrows\/to_the_top.png)\n\nWebinar: Let's make a programming language. 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Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses.\n\n![Priority\/image1.png](https:\/\/import.pvs-studio.com\/docx\/terminology\/Priority\/image1.png?ver=10-09-2025-13-32-24)\n\nTable 1. Operation precedence in C\/C++.\n\nYou may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations ([article on the topic](https:\/\/pvs-studio.com\/en\/blog\/posts\/cpp\/a0072\/)). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable.\n\n**Note.** The PVS-Studio analyzer provides several diagnostics such as [V648](https:\/\/pvs-studio.com\/en\/docs\/warnings\/v648\/). These diagnostics help detect errors related to operator precedence. [Try](https:\/\/pvs-studio.com\/en\/pvs-studio\/try-free\/?utm_source=website&utm_medium=pvs&utm_campaign=manual&utm_content=Priority) to check your code.\n\n## References\n- Wikipedia. [Operators in C and C++](https:\/\/en.wikipedia.org\/wiki\/Operators_in_C_and_C%2B%2B).\n- Cppreference. [C++ Operator Precedence](https:\/\/en.cppreference.com\/w\/cpp\/language\/operator_precedence).\n\n![blog-subscribe](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_bell.svg) ![blog-subscribe](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_bell_active.svg)\n\n![blog-favorite](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_star.svg) ![blog-favorite](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_star_active.svg)\n\n0\n\n0\n\n0\n\n[SHARE](https:\/\/www.reddit.com\/submit?url=https:\/\/pvs-studio.com%2Fen%2Fblog%2Fterms%2F0064%2F&title=Operator%20precedence%20in%20C%20and%20C++)\n\nPopular related articles\n\n- [Code whisperers and rubber duck sorcery: do developers have superstitions? Date: Jul 03 2024 Author: Polina Alekseeva Bugs, bugs, bugs... There's so much in that word, and there are just so many of them. It's merely enough to freak anyone out or develop a phobia. And no wonder; you never know when a regular error in…](https:\/\/pvs-studio.com\/en\/blog\/posts\/1139\/)\n- [Compilation of gripping C++ conference talks from 2023 Date: May 02 2024 Author: Uliana Khromchenko A new conference season is on its way, so we'd like to invite you to read some of the best C++ talks from the last season. You can learn more about C++ and get inspired in this compilation of the...](https:\/\/pvs-studio.com\/en\/blog\/posts\/1120\/)\n- [Bugs that buzzed a lot Date: Apr 12 2024 Author: Anastasiya Vorobeva A real bug, a bug in the code, or distractions can all affect your project and lead to many different consequences. In this article, we've collected a number of notorious and fascinating bugs. Let's.…](https:\/\/pvs-studio.com\/en\/blog\/posts\/1114\/)\n- [Don't fix anything — cultivate acceptance instead: bugs in games that have become features Date: Mar 15 2024 Author: Mariya Hlopova Many psychologists recommend cultivating acceptance. 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Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses.\n\n![Priority\/image1.png](https:\/\/import.pvs-studio.com\/docx\/terminology\/Priority\/image1.png?ver=10-09-2025-13-32-24)\n\nTable 1. Operation precedence in C\/C++.\n\nYou may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations ([article on the topic](https:\/\/pvs-studio.com\/en\/blog\/posts\/cpp\/a0072\/)). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable.\n\n**Note.** The PVS-Studio analyzer provides several diagnostics such as [V648](https:\/\/pvs-studio.com\/en\/docs\/warnings\/v648\/). These diagnostics help detect errors related to operator precedence. [Try](https:\/\/pvs-studio.com\/en\/pvs-studio\/try-free\/?utm_source=website&utm_medium=pvs&utm_campaign=manual&utm_content=Priority) to check your code.\n\n## References\n- Wikipedia. [Operators in C and C++](https:\/\/en.wikipedia.org\/wiki\/Operators_in_C_and_C%2B%2B).\n- Cppreference. [C++ Operator Precedence](https:\/\/en.cppreference.com\/w\/cpp\/language\/operator_precedence).\n\n![blog-subscribe](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_bell.svg) ![blog-subscribe](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_bell_active.svg)\n\n![blog-favorite](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_star.svg) ![blog-favorite](https:\/\/wcdn.pvs-studio.com\/static\/images\/icons\/blog_star_active.svg)\n\n0\n\n0","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

12 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://pvs-studio.com/en/blog/terms/0064/
Last Crawled	2026-04-06 22:53:25 (12 hours ago)
First Indexed	2021-04-27 22:30:05 (4 years ago)
HTTP Status Code	200
Meta Title	Operator precedence in C and C++
Meta Description	Any language expression consists of operands (variables, constants, etc.) connected with each other by operators. Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses.
Meta Canonical	null
Boilerpipe Text	Jul 19 2021 Any language expression consists of operands (variables, constants, etc.) connected with each other by operators. Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses. Table 1. Operation precedence in C/C++. You may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations ( article on the topic ). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable. Note. The PVS-Studio analyzer provides several diagnostics such as V648 . These diagnostics help detect errors related to operator precedence. Try to check your code. References Wikipedia. Operators in C and C++ . Cppreference. C++ Operator Precedence . 0 0
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Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses. ![Priority/image1.png](https://import.pvs-studio.com/docx/terminology/Priority/image1.png?ver=10-09-2025-13-32-24) Table 1. Operation precedence in C/C++. You may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations ([article on the topic](https://pvs-studio.com/en/blog/posts/cpp/a0072/)). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable. Note. The PVS-Studio analyzer provides several diagnostics such as [V648](https://pvs-studio.com/en/docs/warnings/v648/). These diagnostics help detect errors related to operator precedence. [Try](https://pvs-studio.com/en/pvs-studio/try-free/?utm_source=website&utm_medium=pvs&utm_campaign=manual&utm_content=Priority) to check your code. ## References - Wikipedia. [Operators in C and C++](https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B). - Cppreference. [C++ Operator Precedence](https://en.cppreference.com/w/cpp/language/operator_precedence). ![blog-subscribe](https://wcdn.pvs-studio.com/static/images/icons/blog_bell.svg) ![blog-subscribe](https://wcdn.pvs-studio.com/static/images/icons/blog_bell_active.svg) ![blog-favorite](https://wcdn.pvs-studio.com/static/images/icons/blog_star.svg) ![blog-favorite](https://wcdn.pvs-studio.com/static/images/icons/blog_star_active.svg) 0 0 0 [SHARE](https://www.reddit.com/submit?url=https://pvs-studio.com%2Fen%2Fblog%2Fterms%2F0064%2F&title=Operator%20precedence%20in%20C%20and%20C++) Popular related articles - [Code whisperers and rubber duck sorcery: do developers have superstitions? 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Readable Markdown	Jul 19 2021 Any language expression consists of operands (variables, constants, etc.) connected with each other by operators. Operations are executed in a strict order. The value that determines a privilege to execute a certain operation is called precedence. The operation execution order can be regulated by use of parentheses. ![Priority/image1.png](https://import.pvs-studio.com/docx/terminology/Priority/image1.png?ver=10-09-2025-13-32-24) Table 1. Operation precedence in C/C++. You may often see errors in programs which are caused by the fact that it is easy for programmers to forget the exact priorities of operations ([article on the topic](https://pvs-studio.com/en/blog/posts/cpp/a0072/)). This is why professional developers do not feel embarrassed about using additional parentheses: this method secures them from accidental mistakes, and makes expressions more readable. Note. The PVS-Studio analyzer provides several diagnostics such as [V648](https://pvs-studio.com/en/docs/warnings/v648/). These diagnostics help detect errors related to operator precedence. [Try](https://pvs-studio.com/en/pvs-studio/try-free/?utm_source=website&utm_medium=pvs&utm_campaign=manual&utm_content=Priority) to check your code. ## References - Wikipedia. [Operators in C and C++](https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B). - Cppreference. [C++ Operator Precedence](https://en.cppreference.com/w/cpp/language/operator_precedence). ![blog-subscribe](https://wcdn.pvs-studio.com/static/images/icons/blog_bell.svg) ![blog-subscribe](https://wcdn.pvs-studio.com/static/images/icons/blog_bell_active.svg) ![blog-favorite](https://wcdn.pvs-studio.com/static/images/icons/blog_star.svg) ![blog-favorite](https://wcdn.pvs-studio.com/static/images/icons/blog_star_active.svg) 0 0
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