🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 79 (from laksa196)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa079.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 = 51 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://fortune.com/education/articles/free-online-computer-science-courses/\')), getAhrefsUnparsedNoserviceFromURL(\'https://fortune.com/education/articles/free-online-computer-science-courses/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/fortune.com\/education\/articles\/free-online-computer-science-courses\/","crawl_time":1775869808,"first_indexed_time":1728637415,"http_code":200,"src_unparsed":"com,fortune!\/education\/articles\/free-online-computer-science-courses\/ s443","src_root_hash":"13809836321913650279","history_drop_reason":null,"meta_title":"6 universities offering free online computer science courses | Fortune Education","meta_descriptions":["Harvard, MIT, and others allow you to learn Ivy League tech fundamentals for free online."],"meta_canonical":null,"ml_categories_json":"{\"\/Jobs_and_Education\":962,\"\/Jobs_and_Education\/Education\":962,\"\/Jobs_and_Education\/Education\/Computer_Education\":513,\"\/Computers_and_Electronics\":300,\"\/Computers_and_Electronics\/Software\":204,\"\/Computers_and_Electronics\/Software\/Educational_Software\":203}","ml_types_json":"{\"\/Article\":865,\"\/Article\/Listicle\":362}","ml_intent_types_json":"{\"Informational\":993}","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1728637415,"attrs_is_republished":0,"attrs_nr_words":"2070","attrs_boilerpipe_nr_words":"1291","body_ext_links_number":34,"body_int_links_number":83,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":2000,"download_ttfb_msec":1167,"download_size":100187}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 79 · Partition 51

laksa079

13809836321913650279

📄

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`	1.8 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://fortune.com/education/articles/free-online-computer-science-courses/

Last Crawled

2026-04-11 01:10:08 (1 month ago)

First Indexed

2024-10-11 09:03:35 (1 year ago)

HTTP Status Code

200

Content

Meta Title

6 universities offering free online computer science courses | Fortune Education

Meta Description

Harvard, MIT, and others allow you to learn Ivy League tech fundamentals for free online.

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		96.2%
/Jobs_and_Education/Education		96.2%
/Jobs_and_Education/Education/Computer_Education		51.3%
/Computers_and_Electronics		30.0%
/Computers_and_Electronics/Software		20.4%
/Computers_and_Electronics/Software/Educational_Software		20.3%

Raw JSON

{
    "/Jobs_and_Education": 962,
    "/Jobs_and_Education/Education": 962,
    "/Jobs_and_Education/Education/Computer_Education": 513,
    "/Computers_and_Electronics": 300,
    "/Computers_and_Electronics/Software": 204,
    "/Computers_and_Electronics/Software/Educational_Software": 203
}

ML Page Types

/Article		86.5%
/Article/Listicle		36.2%

Raw JSON

{
    "/Article": 865,
    "/Article/Listicle": 362
}

ML Intent Types

Informational

99.3%

Raw JSON

{
    "Informational": 993
}

Content Metadata

Language

Author

null

Publish Time

not set

Original Publish Time

2024-10-11 09:03:35 (1 year ago)

Republished

Word Count (Total)

2,070

Word Count (Content)

1,291

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

2,000

TTFB (ms)

1,167

Download Size (bytes)

100,187

Location

Host ID

79 (laksa079)

Partition ID

Root Hash

13809836321913650279

Unparsed URL

com,fortune!/education/articles/free-online-computer-science-courses/ s443