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@unknown_piter: statistics and cleanliness index

Незнакомый Петербург

Крупнейший познавательный канал про Санкт-Петербург По рекламе: @alex_petersburg (оплата только сюда) Менеджеры: @arkadmin @Tgpodbor_official @Spiral_Yuri Доп. менеджеры: @salesrek Регистрация в РКН: https://clck.ru/3EoMMx

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Grade A metrics look normal cleanliness index
data from 2026-09-21
Subscribers
87,807
Median views
1,891
ERR
2.2%
Posts sampled
40
Niche History
Post language Russian
Channel age 2 years

Data from 2026-09-21 — 18 days old.

Assessment summary

The channel is free from manipulation (risk 19/100), but the audience is very passive: with a base of almost 88,000 subscribers, posts only get about 1,900 views (ERR 2.15%). With an intensity of more than 21 publications per day, an ad post instantly gets pushed up the feed and loses visibility.

Buying advertising here is questionable, as the advertiser overpays for a large subscriber count while receiving the reach of a small local public page.

What to pay attention to

Low reach: ERR ≈ 2.2%

View engagement is below normal for a channel of this size. It might be due to the niche and a passive audience, but it is worth checking.

What grade A means

Metrics look normal: no signals lowering the index were found, or they are weak.

Dynamics and anomalies

Views by post

The latest 40 posts with views, from Sep 19 to Sep 21. The dashed line is the median (1,891).

01.1K2.2KSep 19: 2,093 viewsSep 19: 2,126 viewsSep 19: 2,121 viewsSep 19: 2,048 viewsSep 19: 1,941 viewsSep 19: 2,198 viewsSep 19: 2,066 viewsSep 20: 1,994 viewsSep 20: 1,955 viewsSep 20: 2,031 viewsSep 20: 1,935 viewsSep 20: 1,940 viewsSep 20: 1,906 viewsSep 20: 1,907 viewsSep 20: 1,883 viewsSep 20: 1,957 viewsSep 20: 1,983 viewsSep 20: 1,921 viewsSep 20: 1,823 viewsSep 20: 1,900 viewsSep 20: 2,182 viewsSep 20: 1,815 viewsSep 20: 1,822 viewsSep 20: 1,854 viewsSep 20: 1,782 viewsSep 20: 2,197 viewsSep 21: 1,813 viewsSep 21: 1,773 viewsSep 21: 1,024 viewsSep 21: 849 viewsSep 21: 876 viewsSep 21: 877 viewsSep 21: 767 viewsSep 21: 768 viewsSep 21: 776 viewsSep 21: 768 viewsSep 21: 769 viewsSep 21: 769 viewsSep 21: 718 viewsSep 21: 382 views Sep 19Sep 21
  • post views
  • 21 posts newer than one day and still gaining views
  • median 1,891

Maximum: 2,198 views. Data as of Sep 21.

What scoring found in the view pattern

Low reach: ERR ≈ 2.2%

View engagement is below normal for a channel of this size. It might be due to the niche and a passive audience, but it is worth checking.

What could not be calculated

View build-up not assessed: the channel posts often, and every post is newer than a week.

Cleanliness-index history

3 checks for this channel.

050100Jul 5: index 81, grade AJul 5Aug 19: index 55, grade CAug 19Sep 21: index 81, grade ASep 21

Advertising outlook

Advertising placement: not recommended.

Only a small share of subscribers sees the posts.

About 946–1,986 people will see your post in the first 48 hours.

Reach of advertising posts

Too few advertising posts to compare: 0. 5 more are too fresh.

Buy advertising

Telegram ads are sold on these marketplaces — they have channel catalogs, prices, and checkout.

We don't sell ads. This channel may not be listed there.

Where to buy advertising

Affiliate links: we get a commission. It never affects the channel's score.

Questions about @unknown_piter

Are there signs of manipulation on the channel?

There are no technical signs of manipulation; the risk score is 19 out of 100. The view distribution is natural, and comments are open for discussion.

Why is placing ads here questionable?

The reason is low reach: posts are viewed by fewer than 1,900 people out of 88,000 subscribers. With more than 20 posts published per day, an advertisement drowns in the feed too quickly.

What kind of content is published on the channel?

The feed is dedicated to historical facts, old photographs, and landmark places in Saint Petersburg. Direct ad integrations for local services and real estate appear periodically.

How the assessment was produced

Data source
Public Telegram data: posts, views, reactions, and channel metadata.
Date or snapshot
2026-09-21
Sample
The latest 40 public posts available at check time.
Calculation method
TG Inspector calculates metrics from the saved snapshot and combines independent signals into a deterministic 0–100 cleanliness index.
Factual result
The @unknown_piter assessment dated 2026-09-21 uses 40 recent public posts. At that snapshot the channel had 87,807 subscribers, median post views were 1,891, ERR was 2.2%, and the cleanliness index was 81/100.
Limitations
This is a probabilistic assessment based on public data: it describes metrics, not the owner's actions, and is not a real-time measurement.

Full methodology and interpretation rules

This automated assessment is probabilistic: it describes the channel's public metrics, not its owner's actions. The index and grade are calculated from public data and are not changed on request. Channel owners can request removal of the page — t.me/TGinspector_ru.