🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 120 (from laksa105)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa120.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 = 94 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00224-3/fulltext\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00224-3/fulltext\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.thelancet.com\/journals\/laninf\/article\/PIIS1473-3099(21)00224-3\/fulltext","crawl_time":1769511503,"first_indexed_time":1619568963,"http_code":200,"src_unparsed":"com,thelancet!www,\/journals\/laninf\/article\/PIIS1473-3099(21)00224-3\/fulltext s443","src_root_hash":"16469721507011418920","history_drop_reason":null,"meta_title":"Vaccine side-effects and SARS-CoV-2 infection after vaccination in users of the COVID Symptom Study app in the UK: a prospective observational study - The Lancet Infectious Diseases","meta_descriptions":[],"meta_canonical":null,"ml_categories_json":"{\"\/Health\":954,\"\/Health\/Public_Health\":886,\"\/Health\/Public_Health\/Health_Policy\":870,\"\/Science\":415,\"\/Science\/Biological_Sciences\":411,\"\/Science\/Biological_Sciences\/Other\":363}","ml_types_json":"{\"\/Article\":995,\"\/Article\/Study_or_Research_Findings\":993}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1619568963,"attrs_is_republished":0,"attrs_nr_words":"12616","attrs_boilerpipe_nr_words":"9215","body_ext_links_number":195,"body_int_links_number":252,"meta_nofollow":0,"meta_noarchive":1,"props_was_rendered":1,"src_redirect":"","download_time_msec":1754,"download_ttfb_msec":532,"download_size":84903}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 120 · Partition 94

laksa120

16469721507011418920

📄

INDEXABLE

✅

CRAWLED

4 months ago

🤖

ROBOTS ALLOWED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	4.2 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://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00224-3/fulltext

Last Crawled

2026-01-27 10:58:23 (4 months ago)

First Indexed

2021-04-28 00:16:03 (5 years ago)

HTTP Status Code

200

Content

Meta Title

Vaccine side-effects and SARS-CoV-2 infection after vaccination in users of the COVID Symptom Study app in the UK: a prospective observational study - The Lancet Infectious Diseases

Meta Description

null

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

/Health		95.4%
/Health/Public_Health		88.6%
/Health/Public_Health/Health_Policy		87.0%
/Science		41.5%
/Science/Biological_Sciences		41.1%
/Science/Biological_Sciences/Other		36.3%

Raw JSON

{
    "/Health": 954,
    "/Health/Public_Health": 886,
    "/Health/Public_Health/Health_Policy": 870,
    "/Science": 415,
    "/Science/Biological_Sciences": 411,
    "/Science/Biological_Sciences/Other": 363
}

ML Page Types

/Article		99.5%
/Article/Study_or_Research_Findings		99.3%

Raw JSON

{
    "/Article": 995,
    "/Article/Study_or_Research_Findings": 993
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2021-04-28 00:16:03 (5 years ago)

Republished

Word Count (Total)

12,616

Word Count (Content)

9,215

Links

External Links

195

Internal Links

252

Technical SEO

Meta Nofollow

Meta Noarchive

Yes

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

1,754

TTFB (ms)

532

Download Size (bytes)

84,903

Location

Host ID

120 (laksa120)

Partition ID

Root Hash

16469721507011418920

Unparsed URL

com,thelancet!www,/journals/laninf/article/PIIS1473-3099(21)00224-3/fulltext s443