Crawler Inspector

1. Shard Calculation

Query:

Response:

Calculated Shard: 18 (from laksa023)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa018.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 = 87 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.denverhealth.org/blog/2020/04/how-to-prevent-the-spread-of-coronavirus\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.denverhealth.org/blog/2020/04/how-to-prevent-the-spread-of-coronavirus\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.denverhealth.org\/blog\/2020\/04\/how-to-prevent-the-spread-of-coronavirus","crawl_time":1778009913,"first_indexed_time":1586191889,"http_code":200,"src_unparsed":"org,denverhealth!www,\/blog\/2020\/04\/how-to-prevent-the-spread-of-coronavirus s443","src_root_hash":"7622612382667077418","history_drop_reason":null,"meta_title":"How to Prevent the Spread of Coronavirus | Denver Health","meta_descriptions":["Update April 6, 2020: The Centers for Disease Control and Prevention now recommends everyone wear a homemade, non-medical grade face mask or cloth face covering to stop the spread of COVID-19. Original article: As part of Denver Health's commitment to keeping you informed and safe in the face of the novel coronavirus, also known as COVID-19, we wanted to share a list of tips to help prevent the spread of the virus."],"meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":null,"attrs_publish_time":1742503664,"attrs_original_publish_time":1585699200,"attrs_is_republished":1,"attrs_nr_words":"1156","attrs_boilerpipe_nr_words":"370","body_ext_links_number":20,"body_int_links_number":86,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":382,"download_ttfb_msec":382,"download_size":15700}

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	1 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.denverhealth.org/blog/2020/04/how-to-prevent-the-spread-of-coronavirus
Last Crawled	2026-05-05 19:38:33 (28 days ago)
First Indexed	2020-04-06 16:51:29 (6 years ago)
HTTP Status Code	200
Content
Meta Title	How to Prevent the Spread of Coronavirus \| Denver Health
Meta Description	Update April 6, 2020: The Centers for Disease Control and Prevention now recommends everyone wear a homemade, non-medical grade face mask or cloth face covering to stop the spread of COVID-19. Original article: As part of Denver Health's commitment to keeping you informed and safe in the face of the novel coronavirus, also known as COVID-19, we wanted to share a list of tips to help prevent the spread of the virus.
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	en
Author	null
Publish Time	2025-03-20 20:47:44 (1 year ago)
Original Publish Time	2020-04-01 00:00:00 (6 years ago)
Republished	Yes
Word Count (Total)	1,156
Word Count (Content)	370
Links
External Links	20
Internal Links	86
Technical SEO
Meta Nofollow	No
Meta Noarchive	No
JS Rendered	No
Redirect Target	null
Performance
Download Time (ms)	382
TTFB (ms)	382
Download Size (bytes)	15,700
Location
Host ID	18 (laksa018)
Partition ID	87
Root Hash	7622612382667077418
Unparsed URL	org,denverhealth!www,/blog/2020/04/how-to-prevent-the-spread-of-coronavirus s443

🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

1. Shard Calculation

Query:

Response:

2. Crawled Status Check

Query:

Response:

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

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