🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 40 (from laksa064)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa040.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 = 22 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.mayoclinic.org/zh-hans/diseases-conditions/coronavirus/symptoms-causes/syc-20479963\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.mayoclinic.org/zh-hans/diseases-conditions/coronavirus/symptoms-causes/syc-20479963\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.mayoclinic.org\/zh-hans\/diseases-conditions\/coronavirus\/symptoms-causes\/syc-20479963","crawl_time":1780211534,"first_indexed_time":1582370143,"http_code":200,"src_unparsed":"org,mayoclinic!www,\/zh-hans\/diseases-conditions\/coronavirus\/symptoms-causes\/syc-20479963 s443","src_root_hash":"1608882045018104440","history_drop_reason":null,"meta_title":"2019 冠状病毒病（COVID-19） - 症状与病因 - 妙佑医疗国际","meta_descriptions":["2019 冠状病毒病（COVID-19）是由 SARS-CoV-2 病毒引起的疾病。详细了解症状、风险和自我保护方法。"],"meta_canonical":null,"ml_categories_json":"{\"\/Health\":995,\"\/Health\/Health_Conditions\":514,\"\/Health\/Health_Conditions\/Infectious_Diseases\":441,\"\/Health\/Health_Conditions\/Infectious_Diseases\/Covid-19\":318}","ml_types_json":"{\"\/Article\":952,\"\/Article\/Definitions\":467}","ml_intent_types_json":"{\"Informational\":999,\"Commercial\":216}","meta_language":"zh-hans","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1582370143,"attrs_is_republished":0,"attrs_nr_words":"1128","attrs_boilerpipe_nr_words":"339","body_ext_links_number":37,"body_int_links_number":109,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":254,"download_ttfb_msec":244,"download_size":65558}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 40 · Partition 22

laksa040

1608882045018104440

📄

INDEXABLE

✅

CRAWLED

3 days 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`	0.1 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

Page Details

Property

Value

URL

https://www.mayoclinic.org/zh-hans/diseases-conditions/coronavirus/symptoms-causes/syc-20479963

Last Crawled

2026-05-31 07:12:14 (3 days ago)

First Indexed

2020-02-22 11:15:43 (6 years ago)

HTTP Status Code

200

Content

Meta Title

2019 冠状病毒病（COVID-19） - 症状与病因 - 妙佑医疗国际

Meta Description

2019 冠状病毒病（COVID-19）是由 SARS-CoV-2 病毒引起的疾病。详细了解症状、风险和自我保护方法。

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		99.5%
/Health/Health_Conditions		51.4%
/Health/Health_Conditions/Infectious_Diseases		44.1%
/Health/Health_Conditions/Infectious_Diseases/Covid-19		31.8%

Raw JSON

{
    "/Health": 995,
    "/Health/Health_Conditions": 514,
    "/Health/Health_Conditions/Infectious_Diseases": 441,
    "/Health/Health_Conditions/Infectious_Diseases/Covid-19": 318
}

ML Page Types

/Article		95.2%
/Article/Definitions		46.7%

Raw JSON

{
    "/Article": 952,
    "/Article/Definitions": 467
}

ML Intent Types

Informational		99.9%
Commercial		21.6%

Raw JSON

{
    "Informational": 999,
    "Commercial": 216
}

Content Metadata

Language

zh-hans

Author

null

Publish Time

not set

Original Publish Time

2020-02-22 11:15:43 (6 years ago)

Republished

Word Count (Total)

1,128

Word Count (Content)

339

Links

External Links

Internal Links

109

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

254

TTFB (ms)

244

Download Size (bytes)

65,558

Location

Host ID

40 (laksa040)

Partition ID

Root Hash

1608882045018104440

Unparsed URL

org,mayoclinic!www,/zh-hans/diseases-conditions/coronavirus/symptoms-causes/syc-20479963 s443