🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 142 (from laksa131)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa142.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.veeble.com/kb/screen-command-in-linux-usage-and-examples/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.veeble.com/kb/screen-command-in-linux-usage-and-examples/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.veeble.com\/kb\/screen-command-in-linux-usage-and-examples\/","crawl_time":1778692071,"first_indexed_time":1731818587,"http_code":200,"src_unparsed":"com,veeble!www,\/kb\/screen-command-in-linux-usage-and-examples\/ s443","src_root_hash":"1403233797820838942","history_drop_reason":null,"meta_title":"Linux Screen Command: Installation, Usage, Examples - Veeble Hosting","meta_descriptions":["Explore GNU Screen: installation, usage, commands, and customization tips for efficient terminal session management in Linux machines."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":925,\"\/Computers_and_Electronics\/Software\":451,\"\/Internet_and_Telecom\":348,\"\/Computers_and_Electronics\/Software\/Software_Utilities\":290,\"\/Internet_and_Telecom\/Web_Services\":141,\"\/Internet_and_Telecom\/Web_Services\/Web_Design_and_Development\":114}","ml_types_json":"{\"\/Article\":998,\"\/Article\/Tutorial_or_Guide\":936}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en-us","attrs_author":"Adrian Antony","attrs_publish_time":1719332941,"attrs_original_publish_time":1719332941,"attrs_is_republished":0,"attrs_nr_words":"3140","attrs_boilerpipe_nr_words":"2843","body_ext_links_number":20,"body_int_links_number":62,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":1269,"download_ttfb_msec":1244,"download_size":44674}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 142 · Partition 94

laksa142

1403233797820838942

📄

INDEXABLE

✅

CRAWLED

20 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`	0.7 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.veeble.com/kb/screen-command-in-linux-usage-and-examples/

Last Crawled

2026-05-13 17:07:51 (20 days ago)

First Indexed

2024-11-17 04:43:07 (1 year ago)

HTTP Status Code

200

Content

Meta Title

Linux Screen Command: Installation, Usage, Examples - Veeble Hosting

Meta Description

Explore GNU Screen: installation, usage, commands, and customization tips for efficient terminal session management in Linux machines.

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		92.5%
/Computers_and_Electronics/Software		45.1%
/Internet_and_Telecom		34.8%
/Computers_and_Electronics/Software/Software_Utilities		29.0%
/Internet_and_Telecom/Web_Services		14.1%
/Internet_and_Telecom/Web_Services/Web_Design_and_Development		11.4%

Raw JSON

{
    "/Computers_and_Electronics": 925,
    "/Computers_and_Electronics/Software": 451,
    "/Internet_and_Telecom": 348,
    "/Computers_and_Electronics/Software/Software_Utilities": 290,
    "/Internet_and_Telecom/Web_Services": 141,
    "/Internet_and_Telecom/Web_Services/Web_Design_and_Development": 114
}

ML Page Types

/Article		99.8%
/Article/Tutorial_or_Guide		93.6%

Raw JSON

{
    "/Article": 998,
    "/Article/Tutorial_or_Guide": 936
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

en-us

Author

Adrian Antony

Publish Time

2024-06-25 16:29:01 (1 year ago)

Original Publish Time

2024-06-25 16:29:01 (1 year ago)

Republished

Word Count (Total)

3,140

Word Count (Content)

2,843

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

1,269

TTFB (ms)

1,244

Download Size (bytes)

44,674

Location

Host ID

142 (laksa142)

Partition ID

Root Hash

1403233797820838942

Unparsed URL

com,veeble!www,/kb/screen-command-in-linux-usage-and-examples/ s443