Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 5 (from laksa099)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa005.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://xie.infoq.cn/article/bf3c1215455491a1c741f34ac\')), getAhrefsUnparsedNoserviceFromURL(\'https://xie.infoq.cn/article/bf3c1215455491a1c741f34ac\'))) FORMAT JSONEachRow'

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

Property	Value
URL	https://xie.infoq.cn/article/bf3c1215455491a1c741f34ac
Last Crawled	2026-04-12 18:40:50 (1 day ago)
First Indexed	2025-10-02 23:35:41 (6 months ago)
HTTP Status Code	200
Meta Title	大型广告系统架构与设计_Java_加勒比海带_InfoQ写作社区
Meta Description	业务背景：在数字化平台发展过程中，随着用户规模持续扩大与行为数据的不断积累，流量与数据逐渐成为平台最具价值的资产之一。为了进一步提升用户生命周期价值、加强平台的运营能力，同时打造自主可控的商业化基础
Meta Canonical	null
Boilerpipe Text	null
Markdown	![大型广告系统架构与设计\_Java\_加勒比海带\_InfoQ写作社区](https://static001.infoq.cn/static/infoq/img/logo-121-75.yuij86g.png)
Readable Markdown	null
Shard	5 (laksa)
Root Hash	3265164560527275005
Unparsed URL	cn,infoq!xie,/article/bf3c1215455491a1c741f34ac s443

🕷️ Crawler Inspector

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1. Shard Calculation

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2. Crawled Status Check

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4. Spam/Ban Check

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5. Seen Status Check

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