🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 174 (from laksa016)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa174.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 = 28 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://github.com/zhengjingwei/machine-learning-interview\')), getAhrefsUnparsedNoserviceFromURL(\'https://github.com/zhengjingwei/machine-learning-interview\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/github.com\/zhengjingwei\/machine-learning-interview","crawl_time":1774934522,"first_indexed_time":1632941459,"http_code":200,"src_unparsed":"com,github!\/zhengjingwei\/machine-learning-interview s443","src_root_hash":"6325672905007345774","history_drop_reason":null,"meta_title":"GitHub - zhengjingwei\/machine-learning-interview: 算法工程师-机器学习面试题总结 · GitHub","meta_descriptions":["算法工程师-机器学习面试题总结. Contribute to zhengjingwei\/machine-learning-interview development by creating an account on GitHub."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":550,\"\/Science\":424,\"\/Computers_and_Electronics\/Software\":416,\"\/Computers_and_Electronics\/Software\/Educational_Software\":359,\"\/Science\/Computer_Science\":346,\"\/Science\/Computer_Science\/Machine_Learning_and_Artificial_Intelligence\":344,\"\/Jobs_and_Education\":226,\"\/Jobs_and_Education\/Education\":224,\"\/Jobs_and_Education\/Education\/Computer_Education\":166}","ml_types_json":"{\"\/Article\":787,\"\/Article\/Tutorial_or_Guide\":705}","ml_intent_types_json":"{\"Informational\":998}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1632941459,"attrs_is_republished":0,"attrs_nr_words":"5636","attrs_boilerpipe_nr_words":"5109","body_ext_links_number":65,"body_int_links_number":108,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":1025,"download_ttfb_msec":926,"download_size":215182}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 174 · Partition 28

laksa174

6325672905007345774

📄

INDEXABLE

✅

CRAWLED

2 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`	2.1 months ago (distributed domain, exempt)
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://github.com/zhengjingwei/machine-learning-interview

Last Crawled

2026-03-31 05:22:02 (2 months ago)

First Indexed

2021-09-29 18:50:59 (4 years ago)

HTTP Status Code

200

Content

Meta Title

GitHub - zhengjingwei/machine-learning-interview: 算法工程师-机器学习面试题总结 · GitHub

Meta Description

算法工程师-机器学习面试题总结. Contribute to zhengjingwei/machine-learning-interview development by creating an account on GitHub.

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

/Computers_and_Electronics		55.0%
/Science		42.4%
/Computers_and_Electronics/Software		41.6%
/Computers_and_Electronics/Software/Educational_Software		35.9%
/Science/Computer_Science		34.6%
/Science/Computer_Science/Machine_Learning_and_Artificial_Intelligence		34.4%
/Jobs_and_Education		22.6%
/Jobs_and_Education/Education		22.4%
/Jobs_and_Education/Education/Computer_Education		16.6%

Raw JSON

{
    "/Computers_and_Electronics": 550,
    "/Science": 424,
    "/Computers_and_Electronics/Software": 416,
    "/Computers_and_Electronics/Software/Educational_Software": 359,
    "/Science/Computer_Science": 346,
    "/Science/Computer_Science/Machine_Learning_and_Artificial_Intelligence": 344,
    "/Jobs_and_Education": 226,
    "/Jobs_and_Education/Education": 224,
    "/Jobs_and_Education/Education/Computer_Education": 166
}

ML Page Types

/Article		78.7%
/Article/Tutorial_or_Guide		70.5%

Raw JSON

{
    "/Article": 787,
    "/Article/Tutorial_or_Guide": 705
}

ML Intent Types

Informational

99.8%

Raw JSON

{
    "Informational": 998
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2021-09-29 18:50:59 (4 years ago)

Republished

Word Count (Total)

5,636

Word Count (Content)

5,109

Links

External Links

Internal Links

108

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

1,025

TTFB (ms)

926

Download Size (bytes)

215,182

Location

Host ID

174 (laksa174)

Partition ID

Root Hash

6325672905007345774

Unparsed URL

com,github!/zhengjingwei/machine-learning-interview s443