🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 172 (from laksa109)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa172.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 = 2 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://alison.com/course/introduction-to-carpentry-revised\')), getAhrefsUnparsedNoserviceFromURL(\'https://alison.com/course/introduction-to-carpentry-revised\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/alison.com\/course\/introduction-to-carpentry-revised","crawl_time":1777326580,"first_indexed_time":1556310387,"http_code":200,"src_unparsed":"com,alison!\/course\/introduction-to-carpentry-revised s443","src_root_hash":"9381918764708080572","history_drop_reason":null,"meta_title":"Introduction to Carpentry | Free Online Course | Alison","meta_descriptions":["Pick up a valued trade with this course that explains how to safely work with wood to create beautiful projects as a qualified professional carpenter."],"meta_canonical":null,"ml_categories_json":"{\"\/Home_and_Garden\":794,\"\/Home_and_Garden\/Home_Improvement\":790,\"\/Home_and_Garden\/Home_Improvement\/Construction_and_Power_Tools\":642,\"\/Jobs_and_Education\":572,\"\/Jobs_and_Education\/Education\":571,\"\/Jobs_and_Education\/Education\/Distance_Learning\":264}","ml_types_json":"{\"\/Core_Page\":515,\"\/Core_Page\/Services_Page\":495}","ml_intent_types_json":"{\"Informational\":983,\"Commercial\":119}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1556310387,"attrs_is_republished":0,"attrs_nr_words":"3303","attrs_boilerpipe_nr_words":"152","body_ext_links_number":20,"body_int_links_number":137,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":335,"download_ttfb_msec":326,"download_size":52489}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 172 · Partition 2

laksa172

9381918764708080572

📄

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://alison.com/course/introduction-to-carpentry-revised

Last Crawled

2026-04-27 21:49:40 (1 month ago)

First Indexed

2019-04-26 20:26:27 (7 years ago)

HTTP Status Code

200

Content

Meta Title

Introduction to Carpentry | Free Online Course | Alison

Meta Description

Pick up a valued trade with this course that explains how to safely work with wood to create beautiful projects as a qualified professional carpenter.

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

/Home_and_Garden		79.4%
/Home_and_Garden/Home_Improvement		79.0%
/Home_and_Garden/Home_Improvement/Construction_and_Power_Tools		64.2%
/Jobs_and_Education		57.2%
/Jobs_and_Education/Education		57.1%
/Jobs_and_Education/Education/Distance_Learning		26.4%

Raw JSON

{
    "/Home_and_Garden": 794,
    "/Home_and_Garden/Home_Improvement": 790,
    "/Home_and_Garden/Home_Improvement/Construction_and_Power_Tools": 642,
    "/Jobs_and_Education": 572,
    "/Jobs_and_Education/Education": 571,
    "/Jobs_and_Education/Education/Distance_Learning": 264
}

ML Page Types

/Core_Page		51.5%
/Core_Page/Services_Page		49.5%

Raw JSON

{
    "/Core_Page": 515,
    "/Core_Page/Services_Page": 495
}

ML Intent Types

Informational		98.3%
Commercial		11.9%

Raw JSON

{
    "Informational": 983,
    "Commercial": 119
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2019-04-26 20:26:27 (7 years ago)

Republished

Word Count (Total)

3,303

Word Count (Content)

152

Links

External Links

Internal Links

137

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

335

TTFB (ms)

326

Download Size (bytes)

52,489

Location

Host ID

172 (laksa172)

Partition ID

Root Hash

9381918764708080572

Unparsed URL

com,alison!/course/introduction-to-carpentry-revised s443