Trust Flow
Link Quality
How would you like to start?
Citation Flow
Link Volume


External backlinks




Incoming links from other websites, excludes supplemental

Referring domains

Unique domains linking to this site. Breakdown

Referring IPs

Unique IPs hosting referring domains

Referring Subnets

Unique Class-C subnets

Subscribers get Referring Domain, IP and Subnet values for all websites, and Pro+ accounts get Historic Index Plans & Pricing

Outbound Links

7 Internal
0 External
7 Total Outlinks
0 Ext Domains
(Average per Crawled Page)


Crawled URLs 63,268
Indexed URLs 2,498,854
Educational Ref. Backlinks 1,736,519
Governmental Ref. Backlinks 480,354
Educational Ref. Domains 3,858
Governmental Ref. Domains 979
IP Address

Link Profile

Available to subscribers

Get yours now


A report of the detected language for each page on this domain, and the languages of incoming anchor texts.

Incoming Languages

105,475,904 checked backlinks

  •   70.1% en English
  •    6.3% de German
  •    4.7% fr French
  •    2.7% it Italian
  •    2.6% ru Russian
  •    2% cs Czech
  •    2% tr Turkish
  •    1.8% es Spanish/Castilian
  •    1.3% ja Japanese
  •    0.5% nl Dutch/Flemish
  •    6.0% OTH Other

Site Languages

22,571 language-detected crawled URLs

  •   99.7% en English

Topical Trust Flow

A measure of how close you are to the most trusted websites in almost one thousand categories.

Topical Trust Flow is available on all websites, to all subscribers, even on our lowest-price plan.

Plans & Pricing

To see a live example of our amazing Trust Flow categorisation, check out

Referring Domains Breakdown

Referring Domains

This chart shows the number of Referring Domains reviewed every day.

Available to subscribers Plans & Pricing

Anchor Text

See more results on the Anchor Text tab, where you can drill down into each keyword and find the Referring Domains and External Backlinks that use that Keyword.

# Anchor Text Referring Domains External Backlinks
Total Deleted NoFollow
1 nasa Subscribe
7,836,546 285,879 519,185
2 the original Subscribe
521,952 44,147 521,649
3 discovery Subscribe
183,793 15,315 180,950
4 ephemeris Subscribe
184,793 15,464 183,243
5 orbit diagram Subscribe
181,957 15,234 180,893
6 orbital elements Subscribe
181,904 15,229 180,871
7 physical parameters Subscribe
181,790 15,228 180,868
8 close approach Subscribe
180,999 15,227 180,378
9 public domain material Subscribe
145,805 12,305 145,757

The above chart may have cropped text due to size restrictions, for full details visit the Anchor Text tab. We explain how this is created in the FAQs.

Do you control Verify that you own the domain and get extended free Site Explorer Sign Up for FREE