🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 176 (from laksa048)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa176.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 = 73 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://code.org/en-US/tools/app-lab\')), getAhrefsUnparsedNoserviceFromURL(\'https://code.org/en-US/tools/app-lab\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/code.org\/en-US\/tools\/app-lab","crawl_time":1777347825,"first_indexed_time":1749167296,"http_code":200,"src_unparsed":"org,code!\/en-US\/tools\/app-lab s443","src_root_hash":"17040147991441454776","history_drop_reason":null,"meta_title":"App Lab | Create Apps with JavaScript – No Experience Needed","meta_descriptions":["Design and build apps in App Lab! Start with blocks, move to JavaScript, and explore real-world coding in a beginner-friendly IDE for students."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":926,\"\/Computers_and_Electronics\/Programming\":715,\"\/Computers_and_Electronics\/Programming\/Scripting_Languages\":341,\"\/Jobs_and_Education\":207,\"\/Jobs_and_Education\/Education\":201,\"\/Jobs_and_Education\/Education\/Computer_Education\":186,\"\/Internet_and_Telecom\":138,\"\/Internet_and_Telecom\/Web_Services\":135,\"\/Internet_and_Telecom\/Web_Services\/Web_Design_and_Development\":132}","ml_types_json":"{\"\/Core_Page\":584,\"\/Core_Page\/Services_Page\":499}","ml_intent_types_json":"{\"Informational\":938,\"Commercial\":154}","meta_language":"ar","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1749167296,"attrs_is_republished":0,"attrs_nr_words":"1799","attrs_boilerpipe_nr_words":"643","body_ext_links_number":8,"body_int_links_number":68,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":104,"download_ttfb_msec":102,"download_size":48264}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 176 · Partition 73

laksa176

17040147991441454776

📄

INDEXABLE

✅

CRAWLED

1 month 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`	1.2 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://code.org/en-US/tools/app-lab

Last Crawled

2026-04-28 03:43:45 (1 month ago)

First Indexed

2025-06-05 23:48:16 (12 months ago)

HTTP Status Code

200

Content

Meta Title

App Lab | Create Apps with JavaScript – No Experience Needed

Meta Description

Design and build apps in App Lab! Start with blocks, move to JavaScript, and explore real-world coding in a beginner-friendly IDE for students.

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/Programming		71.5%
/Computers_and_Electronics/Programming/Scripting_Languages		34.1%
/Jobs_and_Education		20.7%
/Jobs_and_Education/Education		20.1%
/Jobs_and_Education/Education/Computer_Education		18.6%
/Internet_and_Telecom		13.8%
/Internet_and_Telecom/Web_Services		13.5%
/Internet_and_Telecom/Web_Services/Web_Design_and_Development		13.2%

Raw JSON

{
    "/Computers_and_Electronics": 926,
    "/Computers_and_Electronics/Programming": 715,
    "/Computers_and_Electronics/Programming/Scripting_Languages": 341,
    "/Jobs_and_Education": 207,
    "/Jobs_and_Education/Education": 201,
    "/Jobs_and_Education/Education/Computer_Education": 186,
    "/Internet_and_Telecom": 138,
    "/Internet_and_Telecom/Web_Services": 135,
    "/Internet_and_Telecom/Web_Services/Web_Design_and_Development": 132
}

ML Page Types

/Core_Page		58.4%
/Core_Page/Services_Page		49.9%

Raw JSON

{
    "/Core_Page": 584,
    "/Core_Page/Services_Page": 499
}

ML Intent Types

Informational		93.8%
Commercial		15.4%

Raw JSON

{
    "Informational": 938,
    "Commercial": 154
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2025-06-05 23:48:16 (12 months ago)

Republished

Word Count (Total)

1,799

Word Count (Content)

643

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

104

TTFB (ms)

102

Download Size (bytes)

48,264

Location

Host ID

176 (laksa176)

Partition ID

Root Hash

17040147991441454776

Unparsed URL

org,code!/en-US/tools/app-lab s443