🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 37 (from laksa003)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa037.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 = 36 AND (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.technologyreview.com/2019/04/10/136124/this-is-the-first-ever-photo-of-a-black-hole/\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.technologyreview.com/2019/04/10/136124/this-is-the-first-ever-photo-of-a-black-hole/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.technologyreview.com\/2019\/04\/10\/136124\/this-is-the-first-ever-photo-of-a-black-hole\/","crawl_time":1779963798,"first_indexed_time":1586290027,"http_code":200,"src_unparsed":"com,technologyreview!www,\/2019\/04\/10\/136124\/this-is-the-first-ever-photo-of-a-black-hole\/ s443","src_root_hash":"11534651206454087237","history_drop_reason":null,"meta_title":"This is the first ever photo of a black hole | MIT Technology Review","meta_descriptions":["This soon-to-be famous image, courtesy of the Event Horizon Telescope (EHT), is our first picture of the black hole that sits inside Messier 87 (M87), a galaxy located more than 53 million light-years from Earth. It has a mass 6.5 billion times that of the sun. This bright image was revealed by researchers at a…"],"meta_canonical":null,"ml_categories_json":"{\"\/Science\":996,\"\/Science\/Astronomy\":989}","ml_types_json":"{\"\/Article\":997,\"\/Article\/News_Update\":956}","ml_intent_types_json":"{\"Informational\":999}","meta_language":"en","attrs_author":"Erin Winick","attrs_publish_time":0,"attrs_original_publish_time":1554854400,"attrs_is_republished":0,"attrs_nr_words":"1261","attrs_boilerpipe_nr_words":"700","body_ext_links_number":9,"body_int_links_number":43,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":638,"download_ttfb_msec":635,"download_size":55170}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 37 · Partition 36

laksa037

11534651206454087237

📄

INDEXABLE

✅

CRAWLED

6 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`	0.2 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.technologyreview.com/2019/04/10/136124/this-is-the-first-ever-photo-of-a-black-hole/

Last Crawled

2026-05-28 10:23:18 (6 days ago)

First Indexed

2020-04-07 20:07:07 (6 years ago)

HTTP Status Code

200

Content

Meta Title

This is the first ever photo of a black hole | MIT Technology Review

Meta Description

This soon-to-be famous image, courtesy of the Event Horizon Telescope (EHT), is our first picture of the black hole that sits inside Messier 87 (M87), a galaxy located more than 53 million light-years from Earth. It has a mass 6.5 billion times that of the sun. This bright image was revealed by researchers at a…

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

/Science		99.6%
/Science/Astronomy		98.9%

Raw JSON

{
    "/Science": 996,
    "/Science/Astronomy": 989
}

ML Page Types

/Article		99.7%
/Article/News_Update		95.6%

Raw JSON

{
    "/Article": 997,
    "/Article/News_Update": 956
}

ML Intent Types

Informational

99.9%

Raw JSON

{
    "Informational": 999
}

Content Metadata

Language

Author

Erin Winick

Publish Time

not set

Original Publish Time

2019-04-10 00:00:00 (7 years ago)

Republished

Word Count (Total)

1,261

Word Count (Content)

700

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

638

TTFB (ms)

635

Download Size (bytes)

55,170

Location

Host ID

37 (laksa037)

Partition ID

Root Hash

11534651206454087237

Unparsed URL

com,technologyreview!www,/2019/04/10/136124/this-is-the-first-ever-photo-of-a-black-hole/ s443