Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 42 (from laksa079)

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 = 25 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.cas.org/ko/resources/cas-insights/covid-19-vaccine-boosters-what-does-the-research-show\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.cas.org/ko/resources/cas-insights/covid-19-vaccine-boosters-what-does-the-research-show\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.cas.org\/ko\/resources\/cas-insights\/covid-19-vaccine-boosters-what-does-the-research-show","crawl_time":1776199386,"first_indexed_time":1719448465,"http_code":200,"src_unparsed":"org,cas!www,\/ko\/resources\/cas-insights\/covid-19-vaccine-boosters-what-does-the-research-show s443","src_root_hash":"5611198673573305042","history_drop_reason":null,"meta_title":"COVID-19 vaccine boosters: what does the research show? | CAS","meta_descriptions":["With recent mRNA booster recommendations, many ask if they should get a COVID-19 booster and what the science shows? This blog explains the science of boosters, reviews current recommendations, and examines recent research."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"ko-kr","attrs_author":"Janet Sasso","attrs_publish_time":0,"attrs_original_publish_time":1719448465,"attrs_is_republished":0,"attrs_nr_words":"1540","attrs_boilerpipe_nr_words":"1152","body_ext_links_number":37,"body_int_links_number":85,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":4166,"download_ttfb_msec":4161,"download_size":22140}

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://www.cas.org/ko/resources/cas-insights/covid-19-vaccine-boosters-what-does-the-research-show
Last Crawled	2026-04-14 20:43:06 (1 month ago)
First Indexed	2024-06-27 00:34:25 (1 year ago)
HTTP Status Code	200
Content
Meta Title	COVID-19 vaccine boosters: what does the research show? \| CAS
Meta Description	With recent mRNA booster recommendations, many ask if they should get a COVID-19 booster and what the science shows? This blog explains the science of boosters, reviews current recommendations, and examines recent research.
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	ko-kr
Author	Janet Sasso
Publish Time	not set
Original Publish Time	2024-06-27 00:34:25 (1 year ago)
Republished	No
Word Count (Total)	1,540
Word Count (Content)	1,152
Links
External Links	37
Internal Links	85
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	4,166
TTFB (ms)	4,161
Download Size (bytes)	22,140
Location
Host ID	42 (laksa042)
Partition ID	25
Root Hash	5611198673573305042
Unparsed URL	org,cas!www,/ko/resources/cas-insights/covid-19-vaccine-boosters-what-does-the-research-show s443

🕷️ Crawler Inspector

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1. Shard Calculation

Query:

Response:

2. Crawled Status Check

Query:

Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

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