🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 45 (from laksa029)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa045.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 = 74 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://twin-cities.umn.edu/news-events/study-uncovers-basis-covid-19-related-brain-fog\')), getAhrefsUnparsedNoserviceFromURL(\'https://twin-cities.umn.edu/news-events/study-uncovers-basis-covid-19-related-brain-fog\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/twin-cities.umn.edu\/news-events\/study-uncovers-basis-covid-19-related-brain-fog","crawl_time":1760925964,"first_indexed_time":1724191531,"http_code":200,"src_unparsed":"edu,umn!twin-cities,\/news-events\/study-uncovers-basis-covid-19-related-brain-fog s443","src_root_hash":"1624480930799954845","history_drop_reason":null,"meta_title":"Study uncovers the basis of COVID-19-related brain fog | University of Minnesota","meta_descriptions":["Neurological symptoms have been widely observed in COVID-19 patients, with many survivors exhibiting persistent neurological and cognitive impairment. New research from the University of Minnesota found that COVID-19 triggers inflammation in the brain, which is linked to many COVID-related symptoms such as fatigue and “brain fog.”"],"meta_canonical":null,"ml_categories_json":"{\"\/Science\":791,\"\/Science\/Biological_Sciences\":791,\"\/Science\/Biological_Sciences\/Neuroscience\":789,\"\/Health\":753,\"\/Health\/Mental_Health\":487,\"\/Health\/Mental_Health\/Other\":309}","ml_types_json":"{\"\/Article\":998,\"\/Article\/Study_or_Research_Findings\":913}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":null,"attrs_publish_time":1724068800,"attrs_original_publish_time":1724068800,"attrs_is_republished":0,"attrs_nr_words":"1132","attrs_boilerpipe_nr_words":"619","body_ext_links_number":14,"body_int_links_number":59,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":162,"download_ttfb_msec":161,"download_size":25614}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 45 · Partition 74

laksa045

1624480930799954845

🚫

NOT INDEXABLE

✅

CRAWLED

7 months ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	7.6 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://twin-cities.umn.edu/news-events/study-uncovers-basis-covid-19-related-brain-fog

Last Crawled

2025-10-20 02:06:04 (7 months ago)

First Indexed

2024-08-20 22:05:31 (1 year ago)

HTTP Status Code

200

Content

Meta Title

Study uncovers the basis of COVID-19-related brain fog | University of Minnesota

Meta Description

Neurological symptoms have been widely observed in COVID-19 patients, with many survivors exhibiting persistent neurological and cognitive impairment. New research from the University of Minnesota found that COVID-19 triggers inflammation in the brain, which is linked to many COVID-related symptoms such as fatigue and “brain fog.”

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

/Science		79.1%
/Science/Biological_Sciences		79.1%
/Science/Biological_Sciences/Neuroscience		78.9%
/Health		75.3%
/Health/Mental_Health		48.7%
/Health/Mental_Health/Other		30.9%

Raw JSON

{
    "/Science": 791,
    "/Science/Biological_Sciences": 791,
    "/Science/Biological_Sciences/Neuroscience": 789,
    "/Health": 753,
    "/Health/Mental_Health": 487,
    "/Health/Mental_Health/Other": 309
}

ML Page Types

/Article		99.8%
/Article/Study_or_Research_Findings		91.3%

Raw JSON

{
    "/Article": 998,
    "/Article/Study_or_Research_Findings": 913
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

null

Publish Time

2024-08-19 12:00:00 (1 year ago)

Original Publish Time

2024-08-19 12:00:00 (1 year ago)

Republished

Word Count (Total)

1,132

Word Count (Content)

619

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

162

TTFB (ms)

161

Download Size (bytes)

25,614

Location

Host ID

45 (laksa045)

Partition ID

Root Hash

1624480930799954845

Unparsed URL

edu,umn!twin-cities,/news-events/study-uncovers-basis-covid-19-related-brain-fog s443