🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 41 (from laksa199)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa041.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 = 34 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://hostafrica.co.za/blog/tutorials/howto-use-linux-screen-command/\')), getAhrefsUnparsedNoserviceFromURL(\'https://hostafrica.co.za/blog/tutorials/howto-use-linux-screen-command/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/hostafrica.co.za\/blog\/tutorials\/howto-use-linux-screen-command\/","crawl_time":1759146743,"first_indexed_time":1751643084,"http_code":200,"src_unparsed":"za,co,hostafrica!\/blog\/tutorials\/howto-use-linux-screen-command\/ s443","src_root_hash":"8455681097599006841","history_drop_reason":null,"meta_title":"How to Use Linux Screen Command | HOSTAFRICA","meta_descriptions":["Empower your SSH sessions with Linux Screen! Learn how to maintain multiple shell windows and keep shells active, even during network disruptions."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":926,\"\/Computers_and_Electronics\/Networking\":706,\"\/Computers_and_Electronics\/Networking\/VPN_and_Remote_Access\":350,\"\/Internet_and_Telecom\":321}","ml_types_json":"{\"\/Article\":999,\"\/Article\/How_to\":709}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en-za","attrs_author":null,"attrs_publish_time":1522174787,"attrs_original_publish_time":1522174787,"attrs_is_republished":0,"attrs_nr_words":"2031","attrs_boilerpipe_nr_words":"1080","body_ext_links_number":27,"body_int_links_number":91,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":2038,"download_ttfb_msec":1799,"download_size":32567}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 41 · Partition 34

laksa041

8455681097599006841

🚫

NOT INDEXABLE

✅

CRAWLED

8 months ago

🚫

ROBOTS BLOCKED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	FAIL	`download_stamp > now() - 6 MONTH`	8.2 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://hostafrica.co.za/blog/tutorials/howto-use-linux-screen-command/

Last Crawled

2025-09-29 11:52:23 (8 months ago)

First Indexed

2025-07-04 15:31:24 (11 months ago)

HTTP Status Code

200

Content

Meta Title

How to Use Linux Screen Command | HOSTAFRICA

Meta Description

Empower your SSH sessions with Linux Screen! Learn how to maintain multiple shell windows and keep shells active, even during network disruptions.

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		92.6%
/Computers_and_Electronics/Networking		70.6%
/Computers_and_Electronics/Networking/VPN_and_Remote_Access		35.0%
/Internet_and_Telecom		32.1%

Raw JSON

{
    "/Computers_and_Electronics": 926,
    "/Computers_and_Electronics/Networking": 706,
    "/Computers_and_Electronics/Networking/VPN_and_Remote_Access": 350,
    "/Internet_and_Telecom": 321
}

ML Page Types

/Article		99.9%
/Article/How_to		70.9%

Raw JSON

{
    "/Article": 999,
    "/Article/How_to": 709
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

en-za

Author

null

Publish Time

2018-03-27 18:19:47 (8 years ago)

Original Publish Time

2018-03-27 18:19:47 (8 years ago)

Republished

Word Count (Total)

2,031

Word Count (Content)

1,080

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

2,038

TTFB (ms)

1,799

Download Size (bytes)

32,567

Location

Host ID

41 (laksa041)

Partition ID

Root Hash

8455681097599006841

Unparsed URL

za,co,hostafrica!/blog/tutorials/howto-use-linux-screen-command/ s443