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In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking to be considered as a web scraper and without needlessly wasting the bandwidth of the server?

Update(2025/09/11):

Dynamic sites don't deny access, but returns contents for non-JS users and it includes message such as "Please enable JS and disable any ad blocker"

Actual cases which I encounter is:

I'm running trend analysis bot on Bluesky, which shows trend words and news article link with thumbnail if it exists: https://bsky.app/profile/did:plc:wwqlk2n45es2ywkwrf4dwsr2/lists/3kob6kalezl2a However, some sites have bot block system such as anti-AI scraper of Cloudflare. ex: https://www.wsj.com/us-news/law/epstein-birthday-book-congress-9d79ab34 (if you've already visited the site before, confirmation screen will not show)

In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If the website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking being considered as a web scraper and without needlessly wasting the bandwidth of the server?

Update(2025/09/11):

Dynamic sites don't deny access, but return contents for non-JS users, and they include messages such as "Please enable JS and disable any ad blocker"

Actual cases that I encounter are:

I'm running a trend analysis bot on Bluesky, which shows trend words and news article links with thumbnails if they exist: https://bsky.app/profile/did:plc:wwqlk2n45es2ywkwrf4dwsr2/lists/3kob6kalezl2a However, some sites have a bot block system, such as the anti-AI scraper of Cloudflare. ex: https://www.wsj.com/us-news/law/epstein-birthday-book-congress-9d79ab34 (if you've already visited the site before, the confirmation screen will not show)

In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking to be considered as a web scraper and without needlessly wasting the bandwidth of the server?

Actual cases which I encounter is:

I'm running trend analysis bot on Bluesky, which shows trend words and news article link with thumbnail if it exists: https://bsky.app/profile/did:plc:wwqlk2n45es2ywkwrf4dwsr2/lists/3kob6kalezl2a However, some sites have bot block system such as anti-AI scraper of Cloudflare. ex: https://www.wsj.com/us-news/law/epstein-birthday-book-congress-9d79ab34 (if you've already visited the site before, confirmation screen will not show)

In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking to be considered as a web scraper and without needlessly wasting the bandwidth of the server?

Update(2025/09/11):

Dynamic sites don't deny access, but returns contents for non-JS users and it includes message such as "Please enable JS and disable any ad blocker"

Actual cases which I encounter is:

I'm running trend analysis bot on Bluesky, which shows trend words and news article link with thumbnail if it exists: https://bsky.app/profile/did:plc:wwqlk2n45es2ywkwrf4dwsr2/lists/3kob6kalezl2a However, some sites have bot block system such as anti-AI scraper of Cloudflare. ex: https://www.wsj.com/us-news/law/epstein-birthday-book-congress-9d79ab34 (if you've already visited the site before, confirmation screen will not show)

In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking to be considered as a web scraper and without needlessly wasting the bandwidth of the server?

In general, to get Open Graph protocol (OGP) data for a given web page, one would need to retrieve the actual HTML, and then extract the meta tags from it.

However, this has two problems:

1. Instead of getting only meta tags, the whole page needs to be downloaded.

2. If website denies bots, it becomes impossible to get OGP data.

Are there APIs that would retrieve just the OGP data?

If not, how exactly am I expected to get OGP data in a responsible way, without risking to be considered as a web scraper and without needlessly wasting the bandwidth of the server?

Actual cases which I encounter is:

I'm running trend analysis bot on Bluesky, which shows trend words and news article link with thumbnail if it exists: https://bsky.app/profile/did:plc:wwqlk2n45es2ywkwrf4dwsr2/lists/3kob6kalezl2a However, some sites have bot block system such as anti-AI scraper of Cloudflare. ex: https://www.wsj.com/us-news/law/epstein-birthday-book-congress-9d79ab34 (if you've already visited the site before, confirmation screen will not show)