🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 14 (from laksa044)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa014.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 = 64 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.redhat.com/en/blog/tips-using-screen\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.redhat.com/en/blog/tips-using-screen\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.redhat.com\/en\/blog\/tips-using-screen","crawl_time":1778381782,"first_indexed_time":1732099691,"http_code":200,"src_unparsed":"com,redhat!www,\/en\/blog\/tips-using-screen s443","src_root_hash":"4780968593380432814","history_drop_reason":null,"meta_title":"Tips for using screen","meta_descriptions":["What happens when you’re connected to a remote system, using a long-running program, and then the connection drops? The odds are, at a minimum, you’re go..."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":828,\"\/Computers_and_Electronics\/Networking\":623,\"\/Internet_and_Telecom\":352,\"\/Computers_and_Electronics\/Networking\/Network_Monitoring_and_Management\":337,\"\/Internet_and_Telecom\/Communications_Equipment\":161}","ml_types_json":"{\"\/Article\":993,\"\/Article\/How_to\":702}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":"Peter Gervase","attrs_publish_time":0,"attrs_original_publish_time":1732099691,"attrs_is_republished":0,"attrs_nr_words":"1993","attrs_boilerpipe_nr_words":"873","body_ext_links_number":6,"body_int_links_number":170,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":239,"download_ttfb_msec":235,"download_size":68585}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 14 · Partition 64

laksa014

4780968593380432814

📄

INDEXABLE

✅

CRAWLED

24 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`	0.8 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.redhat.com/en/blog/tips-using-screen

Last Crawled

2026-05-10 02:56:22 (24 days ago)

First Indexed

2024-11-20 10:48:11 (1 year ago)

HTTP Status Code

200

Content

Meta Title

Tips for using screen

Meta Description

What happens when you’re connected to a remote system, using a long-running program, and then the connection drops? The odds are, at a minimum, you’re go...

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		82.8%
/Computers_and_Electronics/Networking		62.3%
/Internet_and_Telecom		35.2%
/Computers_and_Electronics/Networking/Network_Monitoring_and_Management		33.7%
/Internet_and_Telecom/Communications_Equipment		16.1%

Raw JSON

{
    "/Computers_and_Electronics": 828,
    "/Computers_and_Electronics/Networking": 623,
    "/Internet_and_Telecom": 352,
    "/Computers_and_Electronics/Networking/Network_Monitoring_and_Management": 337,
    "/Internet_and_Telecom/Communications_Equipment": 161
}

ML Page Types

/Article		99.3%
/Article/How_to		70.2%

Raw JSON

{
    "/Article": 993,
    "/Article/How_to": 702
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

Peter Gervase

Publish Time

not set

Original Publish Time

2024-11-20 10:48:11 (1 year ago)

Republished

Word Count (Total)

1,993

Word Count (Content)

873

Links

External Links

Internal Links

170

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Redirect Target

null

Performance

Download Time (ms)

239

TTFB (ms)

235

Download Size (bytes)

68,585

Location

Host ID

14 (laksa014)

Partition ID

Root Hash

4780968593380432814

Unparsed URL

com,redhat!www,/en/blog/tips-using-screen s443