200 Top SEO Ranking Factors September 2021

TOP SEO Factors for 2021-9 previous - today - next

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Distinct Entities Used Diversity	-0.32	69	31	94 %	68 %
2	Variations in HTML Tags Relevancy	-0.25	60782	1604	91 %	94 %
3	Variations in Div Tags Relevancy	-0.24	39183	1094	90 %	93 %
4	Variations in Distinct A Tag HREF Attributes Relevancy	-0.23	5296	148	87 %	45 %
5	Number of Factors Used Diversity	-0.23	218	141	98 %	89 %
6	Term Frequency Relevancy	-0.23	12	6	91 %	94 %
7	Variations in A Tags Relevancy	-0.23	6680	168	85 %	93 %
8	Entities in Title Tag Relevancy	-0.23	7	4	84 %	62 %
9	Variations in Body Tags Relevancy	-0.23	54958	1253	83 %	93 %
10	Variations in A Tag HREF Attributes Relevancy	-0.22	3134	143	82 %	93 %
11	Variations in Search Result Display URL Relevancy	-0.22	19	3	90 %	78 %
12	Variations in Search Result Link Text Relevancy	-0.22	19	3	90 %	78 %
13	Variations in P Tags Relevancy	-0.21	4518	138	82 %	90 %
14	Variations in Sentences Relevancy	-0.21	4006	102	82 %	91 %
15	Variations in H1-H6 Tags Relevancy	-0.21	301	17	84 %	91 %
16	Variations in H1, H2, and H3 Tags Relevancy	-0.21	243	13	82 %	90 %
17	Variations in LI Tags Relevancy	-0.2	3202	64	77 %	93 %
18	Variations in H1 and H2 Tags Relevancy	-0.2	107	8	80 %	90 %
19	Entities in H2 Tags	-0.2	29	7	61 %	66 %
20	Page Size Kilobytes Size	-0.2	545	149	95 %	85 %
21	Clean Keyword Density in the HTML Tag Relevancy	-0.2	208	14	88 %	69 %
22	Clean Text Kilobytes Size	-0.2	34	11	92 %	86 %
23	Unabridged Word Count Size	-0.19	4790	1782	95 %	89 %
24	Word Count Size	-0.19	3848	1407	95 %	87 %
25	Number of HTML Tags Size	-0.19	2973	902	96 %	86 %
26	DomDetailer Majestic Referring Subnets Authority	-0.19	88134	11009	89 %	40 %
27	Variations in Search Result URL Relevancy	-0.19	23	3	70 %	77 %
28	Variations in the Title Tag Relevancy	-0.19	24	3	84 %	79 %
29	DomDetailer Majestic IPs Authority	-0.19	383869	39454	89 %	41 %
30	DomDetailer Majestic Referring Domains Authority	-0.19	2409786	238689	89 %	41 %
31	Variations in Search Result URL Path Relevancy	-0.19	16	2	66 %	75 %
32	Entities in Sentences Relevancy	-0.19	444	107	64 %	97 %
33	Variations in Absolute URLs Relevancy	-0.19	13711	235	74 %	92 %
34	LSI Words in Sentences Relevancy	-0.19	2707	498	69 %	95 %
35	Ahrefs NoFollow Backlinks Authority	-0.19	69008	1339	49 %	21 %
36	Entities in H3 Tags	-0.19	28	6	50 %	64 %
37	Number of HTTPS Links Authority	-0.18	510	150	93 %	84 %
38	Body Tag Size Kilobytes Size	-0.18	381	83	81 %	87 %
39	Variations in Script Tags Relevancy	-0.18	34269	421	70 %	91 %
40	DomDetailer Majestic CF Authority	-0.18	71	35	88 %	39 %
41	Number of Sentences Size	-0.18	149	52	93 %	85 %
42	Ahrefs Text Backlinks Authority	-0.18	77283	3545	55 %	22 %
43	Ahrefs Referring Class C Addresses Authority	-0.18	376	28	55 %	22 %
44	Ahrefs Referring IP Addresses Authority	-0.18	492	34	55 %	22 %
45	Leading Variations in H1-H6 Tags Relevancy	-0.18	37	3	59 %	88 %
46	Variations in Span Tags Relevancy	-0.18	1621	41	65 %	89 %
47	Ahrefs Rank Authority	-0.18	32	12	73 %	19 %
48	Number of Links Authority	-0.18	513	155	94 %	83 %
49	Variations in ALT Attributes Relevancy	-0.18	435	15	57 %	90 %
50	Ahrefs Backlinks Authority	-0.18	77317	3565	55 %	21 %
51	Ahrefs Referring Pages Authority	-0.18	77317	3565	55 %	21 %
52	Variations in H2 Tags Relevancy	-0.18	89	6	56 %	91 %
53	Ahrefs Referring Domains Authority	-0.18	784	53	55 %	22 %
54	DomDetailer Moz PA Authority	-0.18	74	41	89 %	39 %
55	Exact Matches in Body Tag Relevancy	-0.18	145	10	33 %	85 %
56	Keywords in pages top 10 most used phrases	-0.18	26	3	75 %	86 %
57	Entities in the HTML Tag Relevancy	-0.18	2812	350	65 %	94 %
58	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	25	3	56 %	87 %
59	Number of DoFollow Links Authority	-0.18	502	149	94 %	84 %
60	Number of Internal Links Authority	-0.18	490	137	93 %	86 %
61	Variations in the Canonical URL Relevancy	-0.18	68	3	61 %	80 %
62	Exact Matches in the HTML Tag Relevancy	-0.18	165	6	34 %	80 %
63	Variation Density in Top 30KB Relevancy	-0.18	404	26	86 %	40 %
64	Variations in Search Result Document File Name Relevancy	-0.17	9	2	65 %	68 %
65	DomDetailer Moz DA Authority	-0.17	89	41	89 %	37 %
66	Entities in H1 Tags	-0.17	6	3	71 %	57 %
67	Variations in Nav Tags Relevancy	-0.17	7500	216	55 %	91 %
68	DomDetailer Majestic Links Authority	-0.17	210076076	6277727	89 %	41 %
69	Keywords in pages top 5 most used phrases	-0.17	12	2	67 %	84 %
70	Entities in Meta Description Tag Relevancy	-0.17	7	4	67 %	60 %
71	Variations in H1 Tags Relevancy	-0.17	21	2	69 %	79 %
72	Variations in Meta Description Relevancy	-0.17	60	4	67 %	83 %
73	Search Result Summary Length Size	-0.17	372	170	97 %	76 %
74	DomDetailer Facebook Shares Authority	-0.17	13416989	-3593551	83 %	40 %
75	Number Of JSON-LD Types Relevancy	-0.17	57	12	59 %	40 %
76	Number of P Tags Size	-0.16	106	38	90 %	84 %
77	Entities in H4 Tags	-0.16	9	3	29 %	62 %
78	DomDetailer Moz Links Authority	-0.16	85599158	10672578	86 %	34 %
79	Variations in First 100 Words Relevancy	-0.16	216	16	77 %	81 %
80	LSI Words in Title Tag Relevancy	-0.16	15	5	65 %	90 %
81	Number of Absolute URLs Authority	-0.16	497	142	94 %	83 %
82	DomDetailer Majestic TF Authority	-0.16	68	26	83 %	37 %
83	Number of Images with ALT Text Size	-0.16	104	18	85 %	84 %
84	Keywords in pages top 3 most used phrases	-0.16	8	1	58 %	84 %
85	TF/IDF Relevancy	-0.16	2	1	77 %	81 %
86	Number of Images Size	-0.16	123	27	91 %	83 %
87	Variation Count in Top 30KB Relevancy	-0.16	8779	476	92 %	39 %
88	Search Result Has Publish Date	-0.16	1	1	92 %	14 %
89	Leading Variations in Title Tag Relevancy	-0.16	1	1	42 %	76 %
90	DomDetailer Moz Rank Authority	-0.16	9	5	88 %	36 %
91	Ahrefs Dofollow Backlinks Authority	-0.16	75920	2229	41 %	21 %
92	Variations in Search Result Summary Relevancy	-0.16	59	6	92 %	77 %
93	Variations in H3 Tags Relevancy	-0.15	144	6	42 %	87 %
94	Number of Heading Tags Size	-0.15	46	21	92 %	86 %
95	Number of Questions Size	-0.15	25	5	66 %	83 %
96	Has Entities in H1 Tags Relevancy	-0.15	1	1	73 %	53 %
97	Ahrefs Has NoFollow Backlinks Authority	-0.15	1	1	49 %	21 %
98	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	25 %	79 %
99	Leading Variations in H2 Tags Relevancy	-0.15	10	1	29 %	86 %
100	Ahrefs Has Text Backlinks Authority	-0.15	1	1	53 %	21 %
101	Variations in the last 100 words Relevancy	-0.15	210	13	66 %	83 %
102	Variations in OpenGraph Title Relevancy	-0.15	24	2	59 %	76 %
103	Leading Variations in H1 Tags Relevancy	-0.15	3	1	37 %	77 %
104	Title Tag Has Entities Relevancy	-0.15	1	1	84 %	52 %
105	Ahrefs Has Dofollow Backlinks Authority	-0.15	1	1	42 %	21 %
106	Variations in TITLE Attributes Relevancy	-0.15	579	20	41 %	87 %
107	Ahrefs Domain Rating Authority	-0.15	76	26	63 %	18 %
108	Variations in Main Tags Relevancy	-0.15	19392	292	33 %	81 %
109	DomDetailer Majestic GOV Backlinks Authority	-0.14	32428045	2557273	45 %	37 %
110	Variations in ID Attributes Relevancy	-0.14	738	19	19 %	85 %
111	Ahrefs Has Backlinks Authority	-0.14	1	1	54 %	21 %
112	Variations in OpenGraph Description Relevancy	-0.14	229	3	53 %	76 %
113	Variations in Section Tags Relevancy	-0.14	2021	68	42 %	85 %
114	Variations Making Whole Span Tags Relevancy	-0.14	10	1	24 %	85 %
115	Has Entities in H2 Tags Relevancy	-0.14	1	1	63 %	58 %
116	Variations in Footer Tags Relevancy	-0.14	3726	76	42 %	85 %
117	Number of External Links Authority	-0.14	56	17	88 %	75 %
118	Inline JavaScript Kilobytes Size	-0.14	241	32	90 %	77 %
119	Number of H2 Tags Size	-0.14	19	7	77 %	85 %
120	Variations Making Whole LI Tags Relevancy	-0.14	5	1	31 %	82 %
121	Exact Matches in Title Tag Relevancy	-0.14	2	1	24 %	78 %
122	Variations in Strong Tags Relevancy	-0.14	174	6	35 %	83 %
123	Inline CSS Kilobytes Size	-0.14	82	27	61 %	79 %
124	Variations making whole A Tags Relevancy	-0.14	6	2	36 %	84 %
125	Load Time Milliseconds Performance	-0.14	45901	2349	96 %	69 %
126	LSI Words in H2 Tags Relevancy	-0.14	69	13	53 %	92 %
127	Has Entities in H3 Tags Relevancy	-0.14	1	1	53 %	56 %
128	Number of H3 Tags Size	-0.13	28	8	70 %	82 %
129	Number of US Phone Numbers Trust	-0.13	111	9	54 %	79 %
130	Variations in Class Attributes Relevancy	-0.13	12425	269	32 %	82 %
131	Head Size Kilobytes Size	-0.13	134	40	90 %	80 %
132	Ahrefs Internal Links Authority	-0.13	293	71	60 %	22 %
133	Number of Questions In Headings Size	-0.13	7	2	39 %	45 %
134	Variations in Article Tags Relevancy	-0.13	5105	73	31 %	79 %
135	Title Has Sentiment Words Other	-0.13	1	1	18 %	70 %
136	Keywords in pages most used phrase	-0.13	3	1	30 %	77 %
137	Number of NoFollow External Links Authority	-0.13	22	3	24 %	78 %
138	Title Has Sales Words Other	-0.13	1	1	16 %	67 %
139	Number of Nofollow Links Authority	-0.13	42	6	35 %	77 %
140	LSI Words in H1 Tags Relevancy	-0.13	13	4	55 %	86 %
141	Variations in H4 Tags Relevancy	-0.13	111	3	22 %	86 %
142	Meta Description Tag Has Entities Relevancy	-0.13	1	1	69 %	54 %
143	Leading Variations in H3 Tags Relevancy	-0.13	15	2	21 %	81 %
144	LSI Words in Meta Description Tag Relevancy	-0.13	32	8	51 %	89 %
145	Ahrefs Word Count Size	-0.12	3555	988	47 %	12 %
146	Number of DoFollow External Links Authority	-0.12	44	15	86 %	72 %
147	Flesch Kincaid Reading Grade Level Other	-0.12	9	5	95 %	40 %
148	Exact Matches in A Tags Relevancy	-0.12	38	2	19 %	84 %
149	Search Result Number of Dirs in Path Other	-0.12	4	2	81 %	61 %
150	Number Of Claimed Brands Other	-0.12	10	2	20 %	37 %
151	Search Result Publish Date	-0.12	2007236452	1941269701	96 %	47 %
152	LSI Words in H3 Tags Relevancy	-0.12	120	13	46 %	89 %
153	Exact Matches in Sentences Relevancy	-0.12	17	2	20 %	83 %
154	Variations making whole H1-H6 Tags Relevancy	-0.12	4	1	17 %	74 %
155	Variations in I Tags Relevancy	-0.12	580	7	24 %	75 %
156	Variations in H4-H6 Tags Relevancy	-0.12	128	5	27 %	85 %
157	Has JSON-LD Answer	-0.12	1	1	4 %	52 %
158	Variations in Search Result URL Domain Name Relevancy	-0.12	6	1	10 %	56 %
159	Number of Questions In H2 Tags Size	-0.12	3	1	22 %	72 %
160	Has JSON-LD Question	-0.12	1	1	4 %	52 %
161	Variations in Button Tags Relevancy	-0.12	2183	27	10 %	83 %
162	Number of H4 Tags Size	-0.12	13	5	47 %	82 %
163	Exact Matches in H1 Tags Relevancy	-0.12	2	1	17 %	75 %
164	Number of Questions In H3 Tags Size	-0.12	3	1	15 %	76 %
165	Has Apple Touch Icon Technology	-0.12	1	1	48 %	66 %
166	Search Result Link Text Length Size	-0.12	74	52	98 %	67 %
167	Percentage of DoFollow Internal Links Authority	-0.12	96	81	92 %	75 %
168	Number of LinkedIn Pages Authority	-0.12	2	1	25 %	71 %
169	Variations making whole H1, H2, and H3 Tags Relevancy	-0.12	3	1	15 %	71 %
170	Number of Facebook Accounts Authority	-0.12	2	1	34 %	66 %
171	Percentage of NoFollow External Links Authority	-0.12	18	3	22 %	74 %
172	Ahrefs Image Backlinks	-0.12	8186	183	14 %	17 %
173	Number of Social Accounts Authority	-0.12	3	2	51 %	68 %
174	Variations in Host Citations Relevancy	-0.12	1795	57	16 %	82 %
175	Has FavIcon Technology	-0.11	1	1	80 %	69 %
176	Ahrefs Linked Root Domains Authority	-0.11	23	6	59 %	22 %
177	Number of HREF Lang Tags Size	-0.11	12	2	10 %	71 %
178	Number of Twitter Accounts Authority	-0.11	3	1	44 %	67 %
179	Has Schema Markup Relevancy	-0.11	1	1	64 %	69 %
180	Headings Has Question Other	-0.11	1	1	36 %	72 %
181	Has Entities in H4 Tags Relevancy	-0.11	1	1	31 %	53 %
182	Exact Matches in H2 Tags Relevancy	-0.11	3	1	11 %	82 %
183	Leading Variations in H4 Tags Relevancy	-0.11	11	1	12 %	76 %
184	Variations in B Tags Relevancy	-0.11	263	6	15 %	78 %
185	Leading Variations in H4-H6 Tags Relevancy	-0.11	13	1	15 %	77 %
186	Average Words Per Sentence Size	-0.11	433	40	93 %	66 %
187	Has Privacy Policy Trust	-0.11	1	1	63 %	70 %
188	Percentage of NoFollow Links Authority	-0.11	23	4	33 %	71 %
189	Has Terms of Service Trust	-0.11	1	1	43 %	64 %
190	Has Canonical URL Authority	-0.11	1	1	78 %	72 %
191	Ahrefs Page Size Size	-0.11	72680	19868	49 %	12 %
192	Exact Matches in Top 30KB Relevancy	-0.11	42	3	28 %	24 %
193	Has US Phone Number Trust	-0.11	1	1	54 %	68 %
194	Has JSON-LD ImageObject	-0.11	1	1	32 %	62 %
195	Ahrefs External Links Authority	-0.11	56	13	55 %	22 %
196	Search Result Uses HTTPS Other	-0.11	1	1	92 %	65 %
197	Number of Instagram Pages Authority	-0.11	8	1	39 %	67 %
198	Variations in Value Attributes Relevancy	-0.11	599	6	17 %	74 %
199	Variations in OpenGraph Site Name Relevancy	-0.11	8	1	18 %	73 %
200	Number of HTML Comments Size	-0.11	291	29	76 %	73 %

Measures 141942 SEO Factors

140220 Built-In SEO Factors

131209 On-page SEO Factors

9011 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2021-9 previous - today - next