🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 103 (from laksa111)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa103.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://www.dra27.uk/blog/platform/2025/07/17/fireworks.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.dra27.uk/blog/platform/2025/07/17/fireworks.html\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.dra27.uk\/blog\/platform\/2025\/07\/17\/fireworks.html","crawl_time":1776649230,"first_indexed_time":1752852893,"http_code":200,"src_unparsed":"uk,dra27!www,\/blog\/platform\/2025\/07\/17\/fireworks.html s443","src_root_hash":"5825453635728510303","history_drop_reason":null,"meta_title":"Fireworks and things | Notes from the Windows corner","meta_descriptions":["Thanks to some targetted optimisations in the script which manages Relocatable OCaml’s various branches, I’d vastly improved the turn-around time when making changes to the patch-set and propagating them through the various tests and backports. On Tuesday night, the entire set of branches was green in CI (they’re sat here with green check marks and everything). All that was to be needed on Wednesday was to quickly update the opam packaging to take advantage of Relocatable-awesomeness and plumb it all together. The 2022 version of the packages for Ljubljana I knew contained a hack for searching a previous switch, but I’d already investigated a more principled approach using opam’s build-id variable, so it would just be a matter of plumbing that in and using the cloning mechanism already in that script."],"meta_canonical":null,"ml_categories_json":"{\"\/Computers_and_Electronics\":671,\"\/Computers_and_Electronics\/Software\":307,\"\/Computers_and_Electronics\/Software\/Software_Utilities\":239,\"\/Games\":236,\"\/Hobbies_and_Leisure\":195,\"\/Games\/Computer_and_Video_Games\":182}","ml_types_json":"{\"\/Article\":995,\"\/Article\/Tutorial_or_Guide\":718}","ml_intent_types_json":"{\"Informational\":997}","meta_language":"en","attrs_author":null,"attrs_publish_time":1752710400,"attrs_original_publish_time":1752710400,"attrs_is_republished":0,"attrs_nr_words":"380","attrs_boilerpipe_nr_words":"326","body_ext_links_number":5,"body_int_links_number":4,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":1,"src_redirect":"","download_time_msec":111,"download_ttfb_msec":110,"download_size":3098}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍

LOCATION

Host 103 · Partition 51

laksa103

5825453635728510303

📄

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`	1.5 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.dra27.uk/blog/platform/2025/07/17/fireworks.html

Last Crawled

2026-04-20 01:40:30 (1 month ago)

First Indexed

2025-07-18 15:34:53 (10 months ago)

HTTP Status Code

200

Content

Meta Title

Fireworks and things | Notes from the Windows corner

Meta Description

Thanks to some targetted optimisations in the script which manages Relocatable OCaml’s various branches, I’d vastly improved the turn-around time when making changes to the patch-set and propagating them through the various tests and backports. On Tuesday night, the entire set of branches was green in CI (they’re sat here with green check marks and everything). All that was to be needed on Wednesday was to quickly update the opam packaging to take advantage of Relocatable-awesomeness and plumb it all together. The 2022 version of the packages for Ljubljana I knew contained a hack for searching a previous switch, but I’d already investigated a more principled approach using opam’s build-id variable, so it would just be a matter of plumbing that in and using the cloning mechanism already in that script.

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

/Computers_and_Electronics		67.1%
/Computers_and_Electronics/Software		30.7%
/Computers_and_Electronics/Software/Software_Utilities		23.9%
/Games		23.6%
/Hobbies_and_Leisure		19.5%
/Games/Computer_and_Video_Games		18.2%

Raw JSON

{
    "/Computers_and_Electronics": 671,
    "/Computers_and_Electronics/Software": 307,
    "/Computers_and_Electronics/Software/Software_Utilities": 239,
    "/Games": 236,
    "/Hobbies_and_Leisure": 195,
    "/Games/Computer_and_Video_Games": 182
}

ML Page Types

/Article		99.5%
/Article/Tutorial_or_Guide		71.8%

Raw JSON

{
    "/Article": 995,
    "/Article/Tutorial_or_Guide": 718
}

ML Intent Types

Informational

99.7%

Raw JSON

{
    "Informational": 997
}

Content Metadata

Language

Author

null

Publish Time

2025-07-17 00:00:00 (10 months ago)

Original Publish Time

2025-07-17 00:00:00 (10 months ago)

Republished

Word Count (Total)

380

Word Count (Content)

326

Links

External Links

Internal Links

Technical SEO

Meta Nofollow

Meta Noarchive

JS Rendered

Yes

Redirect Target

null

Performance

Download Time (ms)

111

TTFB (ms)

110

Download Size (bytes)

3,098

Location

Host ID

103 (laksa103)

Partition ID

Root Hash

5825453635728510303

Unparsed URL

uk,dra27!www,/blog/platform/2025/07/17/fireworks.html s443