optional.is

Backlink analytics and domain authority

Backlinks

All Dofollow Nofollow UGC DR ▾ Ref. domains ▾ + Add filter

7 backlinks All New Lost

Referring page	DR	Ref. domains	Linked domains	Anchor and target URL
Lazy Reading for 2014/04/27 – DragonFly BSD Digest https://www.dragonflydigest.com/2014/04/27/lazy-reading-for-20140427 dragonflydigest.com	13	22	1,729	CERN Terminal font http://optional.is/required/2014/03/26/meyrin-cern-terminal-font DOFOLLOW
Week notes - 2019 w47 - worklog - otsukare https://www.otsukare.info/2019/11/22/week-notes-2019-47 otsukare.info	12	8	174	own week notes http://optional.is/required/category/weeknotes DOFOLLOW
Das war „beyond tellerrand“ 2014 \| 640×480 https://640x480.de/detail/das-war-beyond-tellerrand-2015-3058.html 640x480.de	25	1	23	http://optional.is http://optional.is/ DOFOLLOW
écosystème 11d.im	7	1	248	optional.is/required DOFOLLOW
tollwerk hoch 20 \| tollwerk https://tollwerk.de/blog/tollwerk-hoch-20/ab/50 tollwerk.de	13	9	155	Brian Suda https://optional.is/ DOFOLLOW
microformats2 - Microformats Wiki http://microformats.org/wiki/microformats-2?ref=werd.io microformats.org	78	545	277	optional.is http://optional.is/required NOFOLLOW
科技爱好者周刊（第 373 期）：数据模型是新产品的核心 \| ruanyf-weekly https://ruanyf-weekly.plantree.me/weekly/issue-373 ruanyf-weekly.plantree.me	7	1	4,790	古埃及象形文字 https://optional.is/required/2009/12/03/welcome-the-entire-land DOFOLLOW

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Frequently Asked Questions

How many backlinks does optional.is have?

The backlinks page for optional.is shows all individual inbound links discovered in our crawl of the web. Each backlink represents a hyperlink on another website that points to a page on optional.is. Use the filters to narrow results by dofollow/nofollow status, domain rating, or anchor text.

What is a backlink?

A backlink is a hyperlink on one website that points to a page on a different website. Backlinks are one of the most important ranking factors in search engine algorithms because they act as votes of confidence from other sites. The more high-quality backlinks a domain has, the more authority search engines assign to it.

Are the backlinks to optional.is dofollow or nofollow?

Backlinks to optional.is include both dofollow and nofollow links. Dofollow links pass link equity (ranking power) to the target site, while nofollow links include a rel="nofollow" attribute that tells search engines not to pass authority. Both types contribute to a natural backlink profile, but dofollow links carry more SEO weight. You can filter by link type using the rel filter above the table.

How often is backlink data updated?

Backlink data is updated monthly when our web crawler completes a new cycle. Our pipeline processes billions of web pages to discover new backlinks, track lost links, and update domain authority scores. The freshness of data depends on when our crawler last visited the referring pages.