Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 42 (from laksa041)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa042.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, 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 int_partition_id = 99 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://visajx.com/a/8394.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://visajx.com/a/8394.html\'))) FORMAT JSONEachRow'

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1.7 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

Property	Value
URL	https://visajx.com/a/8394.html
Last Crawled	2026-04-13 01:27:57 (1 month ago)
First Indexed	2023-01-05 20:27:27 (3 years ago)
HTTP Status Code	200
Content
Meta Title	由中国大陆入境新加坡须知中国游客入境新加坡政策新加坡入境无需核酸测试和隔离 2023新加坡入境政策
Meta Description	13岁及以上的所有外国旅客入境新加坡无需测试或隔离，但前提是满足必须疫苗接种条件。疫苗类型需为世卫-欧盟药监授权批准，对应剂次要求如下： ①1针康希诺CanSinoBIO/Convidecia/ 1针强生Janssen/J&J 或
Meta Canonical	null
Boilerpipe Text	heavy column, fetched on demand
Markdown	heavy column, fetched on demand
Readable Markdown	heavy column, fetched on demand
ML Classification
ML Categories	null
ML Page Types	null
ML Intent Types	null
Content Metadata
Language	null
Author	null
Publish Time	not set
Original Publish Time	2023-01-05 20:27:27 (3 years ago)
Republished	No
Word Count (Total)	89
Word Count (Content)	36
Links
External Links	2
Internal Links	13
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	840
TTFB (ms)	839
Download Size (bytes)	4,352
Location
Host ID	42 (laksa042)
Partition ID	99
Root Hash	11114962401664939842
Unparsed URL	com,visajx!/a/8394.html s443

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1. Shard Calculation

Query:

Response:

2. Crawled Status Check

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3. Robots.txt Check

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Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

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