🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 14 (from laksa183)

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 = 2 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.duolingo.com/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.duolingo.com/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.duolingo.com\/","crawl_time":1779323999,"first_indexed_time":1375979390,"http_code":200,"src_unparsed":"com,duolingo!www,\/ s443","src_root_hash":"14964279925492100414","history_drop_reason":null,"meta_title":"Duolingo - The world’s most popular way to learn","meta_descriptions":["Free, fun, and effective courses in languages and more. Learn with quick, science-based lessons personalized to you."],"meta_canonical":null,"ml_categories_json":"{\"\/Jobs_and_Education\":960,\"\/Jobs_and_Education\/Education\":960,\"\/Jobs_and_Education\/Education\/Distance_Learning\":894,\"\/People_and_Society\":112}","ml_types_json":"{\"\/Core_Page\":647,\"\/Core_Page\/Services_Page\":625}","ml_intent_types_json":"{\"Commercial\":769,\"Informational\":423,\"Transactional\":147}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1375979390,"attrs_is_republished":0,"attrs_nr_words":"417","attrs_boilerpipe_nr_words":"208","body_ext_links_number":15,"body_int_links_number":106,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":234,"download_ttfb_msec":234,"download_size":3728}

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 2

laksa014

14964279925492100414

📄

INDEXABLE

✅

CRAWLED

13 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`	0.4 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.duolingo.com/

Last Crawled

2026-05-21 00:39:59 (13 days ago)

First Indexed

2013-08-08 16:29:50 (12 years ago)

HTTP Status Code

200

Content

Meta Title

Duolingo - The world’s most popular way to learn

Meta Description

Free, fun, and effective courses in languages and more. Learn with quick, science-based lessons personalized to you.

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

/Jobs_and_Education		96.0%
/Jobs_and_Education/Education		96.0%
/Jobs_and_Education/Education/Distance_Learning		89.4%
/People_and_Society		11.2%

Raw JSON

{
    "/Jobs_and_Education": 960,
    "/Jobs_and_Education/Education": 960,
    "/Jobs_and_Education/Education/Distance_Learning": 894,
    "/People_and_Society": 112
}

ML Page Types

/Core_Page		64.7%
/Core_Page/Services_Page		62.5%

Raw JSON

{
    "/Core_Page": 647,
    "/Core_Page/Services_Page": 625
}

ML Intent Types

Commercial		76.9%
Informational		42.3%
Transactional		14.7%

Raw JSON

{
    "Commercial": 769,
    "Informational": 423,
    "Transactional": 147
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2013-08-08 16:29:50 (12 years ago)

Republished

Word Count (Total)

417

Word Count (Content)

208

Links

External Links

Internal Links

106

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

234

TTFB (ms)

234

Download Size (bytes)

3,728

Location

Host ID

14 (laksa014)

Partition ID

Root Hash

14964279925492100414

Unparsed URL

com,duolingo!www,/ s443