🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 111 (from laksa053)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa111.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 = 63 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.cs.washington.edu/academics/courses/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.cs.washington.edu/academics/courses/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.cs.washington.edu\/academics\/courses\/","crawl_time":1777285638,"first_indexed_time":1734865845,"http_code":200,"src_unparsed":"edu,washington!cs,www,\/academics\/courses\/ s443","src_root_hash":"13741598130800272711","history_drop_reason":null,"meta_title":"Courses - Paul G. Allen School of Computer Science & Engineering","meta_descriptions":["At the Allen School, students combine foundational courses that provide them with essential knowledge and skills to succeed."],"meta_canonical":null,"ml_categories_json":"{\"\/Jobs_and_Education\":960,\"\/Jobs_and_Education\/Education\":960,\"\/Jobs_and_Education\/Education\/Computer_Education\":711,\"\/Computers_and_Electronics\":327,\"\/Computers_and_Electronics\/Programming\":308,\"\/Computers_and_Electronics\/Programming\/Other\":152}","ml_types_json":"{\"\/Listing_Collection\":907,\"\/Listing_Collection\/Service\":575}","ml_intent_types_json":"{\"Informational\":949,\"Navigational\":106}","meta_language":"en-us","attrs_author":null,"attrs_publish_time":1774995615,"attrs_original_publish_time":1734865845,"attrs_is_republished":1,"attrs_nr_words":"9538","attrs_boilerpipe_nr_words":"8310","body_ext_links_number":8,"body_int_links_number":468,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":376,"download_ttfb_msec":301,"download_size":50504}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 111 · Partition 63

laksa111

13741598130800272711

📄

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://www.cs.washington.edu/academics/courses/

Last Crawled

2026-04-27 10:27:18 (1 month ago)

First Indexed

2024-12-22 11:10:45 (1 year ago)

HTTP Status Code

200

Content

Meta Title

Courses - Paul G. Allen School of Computer Science & Engineering

Meta Description

At the Allen School, students combine foundational courses that provide them with essential knowledge and skills to succeed.

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/Computer_Education		71.1%
/Computers_and_Electronics		32.7%
/Computers_and_Electronics/Programming		30.8%
/Computers_and_Electronics/Programming/Other		15.2%

Raw JSON

{
    "/Jobs_and_Education": 960,
    "/Jobs_and_Education/Education": 960,
    "/Jobs_and_Education/Education/Computer_Education": 711,
    "/Computers_and_Electronics": 327,
    "/Computers_and_Electronics/Programming": 308,
    "/Computers_and_Electronics/Programming/Other": 152
}

ML Page Types

/Listing_Collection		90.7%
/Listing_Collection/Service		57.5%

Raw JSON

{
    "/Listing_Collection": 907,
    "/Listing_Collection/Service": 575
}

ML Intent Types

Informational		94.9%
Navigational		10.6%

Raw JSON

{
    "Informational": 949,
    "Navigational": 106
}

Content Metadata

Language

en-us

Author

null

Publish Time

2026-03-31 22:20:15 (2 months ago)

Original Publish Time

2024-12-22 11:10:45 (1 year ago)

Republished

Yes

Word Count (Total)

9,538

Word Count (Content)

8,310

Links

External Links

Internal Links

468

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

376

TTFB (ms)

301

Download Size (bytes)

50,504

Location

Host ID

111 (laksa111)

Partition ID

Root Hash

13741598130800272711

Unparsed URL

edu,washington!cs,www,/academics/courses/ s443