If you copy and paste the same caption, it will appear differently in each of the four places.
When operating SNS across multiple channels, the most common method is to write the text once and paste it in four places. However, because each channel has different restrictions, the same text will be blocked in one place, the link will not be clicked in another, and reach will be reduced in still others.
The content below is a compilation of each channel's official policy and published participation rate data in August 2026. The performance of specific clients or actual accounts was not cited.
Instagram: Five hashtags, caption link not clickable
Instagram is December 18, 2025Starting with a limit of five hashtags per post. Adding six won't just reduce your reach, it'll just prevent you from posting. If you copy phrases with about 10 tags based on other channels, you will get blocked at this point.
The address written in the caption also does not function as a link. Since it does not move when pressed, only letters occupy the space where the address is written. So, on Instagram, the link is placed on the profile, and the caption directs to the profile link.
- Use no more than five hashtags.
- The caption does not include an external address, but instead directs you to the profile link.
- Include your conclusion in the first 125 characters. The back is folded and invisible.
Thread: End the text without a link and add the address to the first reply.
A thread will not be taken down just because a link is included. However, continuing replies is the strongest signal of exposure, but replies to posts with links are not common. As a result, putting addresses in the body of the article reduces the reach of the article.
So, I end the main text as a complete post without links, and put the address in my first reply. Closing the text with a question increases the chance of receiving a reply. Only one topic tag is used.
Facebook page: Link posts have an engagement rate of 0.05%
The overall average organic participation rate for Facebook pages is around 0.15%, but if you look at link posts separately, 0.05%no see. This is one third of the size of a photo or video. The moment you insert a link into the text, the reach of the same content is reduced by one-third.
Since Facebook has a generous character limit, it is better to use enough descriptive text in the text and not place the address in the first comment.
YouTube Shorts: Title is a separate field from the text
On YouTube, the title and description are different fields. If you leave the title blank, the first line of the caption becomes the title, but the first sentence written for other channels often does not contain the search term. As a result, you lose out on searches.
On YouTube, it works normally even if you put the address in the description field, so you can just put the link in the description field. The hashtag is #ShortsAround four, including , is appropriate.
Rules for each channel in one page
| channel | hashtag | link location | |
|---|---|---|---|
| Up to 5 | profile link | Posting is blocked by adding more than six tags. | |
| thread | 1 topic tag | My first reply | Inserting a link in the text reduces the number of replies. |
| facebook page | restrictions are loose | first comment | Posting it as a link post will increase the participation rate by 1/3. |
| youtube shorts | Around 4 pieces (including #Shorts) | Description field | Leave the title blank so the first line of the caption becomes the title. |
If there are four channels, there are four rules to follow. If you let the tool do it for you instead of guessing by hand every time, you will be less likely to miss something because you don't know the rules. Made by BlueCanvas BLUE POST Upload a video, add separate text to each channel, and then save and reserve the text to be included in the first comment.
